Home / 13,436.13-18,540.45-7,466.85

Finding the Fourth Proportional to 13,436.13, 18,540.45 and 7,466.85

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Solution

The fourth proportional to 13,436.13, 18,540.45 and 7,466.85 is: 10,303.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436.13 : 18,540.45 = 7,466.85 : x
  2. Step 2: Convert to fraction form
    13,436.13/18,540.45 = 7,466.85/x
  3. Step 3: Cross multiply
    13,436.13x = 18,540.45 × 7,466.85
  4. Step 4: Simplify right side
    13,436.13x = 138,438,759.08
  5. Step 5: Solve for x
    x = 138,438,759.08/13,436.13
  6. Step 6: Final answer
    x = 10,303.47

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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.