Home / 15,818.72-23,730.26-5,429.12

Finding the Fourth Proportional to 15,818.72, 23,730.26 and 5,429.12

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Solution

The fourth proportional to 15,818.72, 23,730.26 and 5,429.12 is: 8,144.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,818.72 : 23,730.26 = 5,429.12 : x
  2. Step 2: Convert to fraction form
    15,818.72/23,730.26 = 5,429.12/x
  3. Step 3: Cross multiply
    15,818.72x = 23,730.26 × 5,429.12
  4. Step 4: Simplify right side
    15,818.72x = 128,834,429.17
  5. Step 5: Solve for x
    x = 128,834,429.17/15,818.72
  6. Step 6: Final answer
    x = 8,144.43

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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.