Home / 18,275.59-25,220.10-10,318.15

Finding the Fourth Proportional to 18,275.59, 25,220.10 and 10,318.15

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Solution

The fourth proportional to 18,275.59, 25,220.10 and 10,318.15 is: 14,238.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,275.59 : 25,220.10 = 10,318.15 : x
  2. Step 2: Convert to fraction form
    18,275.59/25,220.10 = 10,318.15/x
  3. Step 3: Cross multiply
    18,275.59x = 25,220.10 × 10,318.15
  4. Step 4: Simplify right side
    18,275.59x = 260,224,845.03
  5. Step 5: Solve for x
    x = 260,224,845.03/18,275.59
  6. Step 6: Final answer
    x = 14,238.93

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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.