Home / 18,737.20-25,857.93-10,240.12

Finding the Fourth Proportional to 18,737.20, 25,857.93 and 10,240.12

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Solution

The fourth proportional to 18,737.20, 25,857.93 and 10,240.12 is: 14,131.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,737.20 : 25,857.93 = 10,240.12 : x
  2. Step 2: Convert to fraction form
    18,737.20/25,857.93 = 10,240.12/x
  3. Step 3: Cross multiply
    18,737.20x = 25,857.93 × 10,240.12
  4. Step 4: Simplify right side
    18,737.20x = 264,788,319.27
  5. Step 5: Solve for x
    x = 264,788,319.27/18,737.20
  6. Step 6: Final answer
    x = 14,131.69

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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.