Home / 15,730.60-21,708.18-9,442.96

Finding the Fourth Proportional to 15,730.60, 21,708.18 and 9,442.96

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Solution

The fourth proportional to 15,730.60, 21,708.18 and 9,442.96 is: 13,031.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,730.60 : 21,708.18 = 9,442.96 : x
  2. Step 2: Convert to fraction form
    15,730.60/21,708.18 = 9,442.96/x
  3. Step 3: Cross multiply
    15,730.60x = 21,708.18 × 9,442.96
  4. Step 4: Simplify right side
    15,730.60x = 204,989,475.41
  5. Step 5: Solve for x
    x = 204,989,475.41/15,730.60
  6. Step 6: Final answer
    x = 13,031.26

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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.