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Finding the Fourth Proportional to 10,344.60, 15,516.90 and 7,018.20

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Solution

The fourth proportional to 10,344.60, 15,516.90 and 7,018.20 is: 10,527.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,344.60 : 15,516.90 = 7,018.20 : x
  2. Step 2: Convert to fraction form
    10,344.60/15,516.90 = 7,018.20/x
  3. Step 3: Cross multiply
    10,344.60x = 15,516.90 × 7,018.20
  4. Step 4: Simplify right side
    10,344.60x = 108,900,707.58
  5. Step 5: Solve for x
    x = 108,900,707.58/10,344.60
  6. Step 6: Final answer
    x = 10,527.30

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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.