Home / 18,385.87-25,373.47-13,901.92

Finding the Fourth Proportional to 18,385.87, 25,373.47 and 13,901.92

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Solution

The fourth proportional to 18,385.87, 25,373.47 and 13,901.92 is: 19,185.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,385.87 : 25,373.47 = 13,901.92 : x
  2. Step 2: Convert to fraction form
    18,385.87/25,373.47 = 13,901.92/x
  3. Step 3: Cross multiply
    18,385.87x = 25,373.47 × 13,901.92
  4. Step 4: Simplify right side
    18,385.87x = 352,739,950.06
  5. Step 5: Solve for x
    x = 352,739,950.06/18,385.87
  6. Step 6: Final answer
    x = 19,185.38

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Double scale
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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.