Home / 25,126.11-37,689.96-12,639.32

Finding the Fourth Proportional to 25,126.11, 37,689.96 and 12,639.32

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Solution

The fourth proportional to 25,126.11, 37,689.96 and 12,639.32 is: 18,959.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,126.11 : 37,689.96 = 12,639.32 : x
  2. Step 2: Convert to fraction form
    25,126.11/37,689.96 = 12,639.32/x
  3. Step 3: Cross multiply
    25,126.11x = 37,689.96 × 12,639.32
  4. Step 4: Simplify right side
    25,126.11x = 476,375,276.78
  5. Step 5: Solve for x
    x = 476,375,276.78/25,126.11
  6. Step 6: Final answer
    x = 18,959.37

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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.