Home / 18,505.89-25,538.07-10,439.52

Finding the Fourth Proportional to 18,505.89, 25,538.07 and 10,439.52

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Solution

The fourth proportional to 18,505.89, 25,538.07 and 10,439.52 is: 14,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.89 : 25,538.07 = 10,439.52 : x
  2. Step 2: Convert to fraction form
    18,505.89/25,538.07 = 10,439.52/x
  3. Step 3: Cross multiply
    18,505.89x = 25,538.07 × 10,439.52
  4. Step 4: Simplify right side
    18,505.89x = 266,605,192.53
  5. Step 5: Solve for x
    x = 266,605,192.53/18,505.89
  6. Step 6: Final answer
    x = 14,406.50

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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.