Home / 13,359.56-18,436.20-7,391.63

Finding the Fourth Proportional to 13,359.56, 18,436.20 and 7,391.63

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Solution

The fourth proportional to 13,359.56, 18,436.20 and 7,391.63 is: 10,200.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.56 : 18,436.20 = 7,391.63 : x
  2. Step 2: Convert to fraction form
    13,359.56/18,436.20 = 7,391.63/x
  3. Step 3: Cross multiply
    13,359.56x = 18,436.20 × 7,391.63
  4. Step 4: Simplify right side
    13,359.56x = 136,273,587.38
  5. Step 5: Solve for x
    x = 136,273,587.38/13,359.56
  6. Step 6: Final answer
    x = 10,200.46

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Half scale
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Double scale
Find fourth proportional to 13,360.56, 18,437.58 and 7,392.63
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.