Home / 13,359.77-18,436.80-7,391.55

Finding the Fourth Proportional to 13,359.77, 18,436.80 and 7,391.55

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Solution

The fourth proportional to 13,359.77, 18,436.80 and 7,391.55 is: 10,200.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,359.77 : 18,436.80 = 7,391.55 : x
  2. Step 2: Convert to fraction form
    13,359.77/18,436.80 = 7,391.55/x
  3. Step 3: Cross multiply
    13,359.77x = 18,436.80 × 7,391.55
  4. Step 4: Simplify right side
    13,359.77x = 136,276,529.04
  5. Step 5: Solve for x
    x = 136,276,529.04/13,359.77
  6. Step 6: Final answer
    x = 10,200.52

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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.