Home / 25,143.12-37,715.04-7,612.92

Finding the Fourth Proportional to 25,143.12, 37,715.04 and 7,612.92

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Solution

The fourth proportional to 25,143.12, 37,715.04 and 7,612.92 is: 11,419.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,143.12 : 37,715.04 = 7,612.92 : x
  2. Step 2: Convert to fraction form
    25,143.12/37,715.04 = 7,612.92/x
  3. Step 3: Cross multiply
    25,143.12x = 37,715.04 × 7,612.92
  4. Step 4: Simplify right side
    25,143.12x = 287,121,582.32
  5. Step 5: Solve for x
    x = 287,121,582.32/25,143.12
  6. Step 6: Final answer
    x = 11,419.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.