Home / 10,378.64-14,327.17-7,031.62

Finding the Fourth Proportional to 10,378.64, 14,327.17 and 7,031.62

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Solution

The fourth proportional to 10,378.64, 14,327.17 and 7,031.62 is: 9,706.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.64 : 14,327.17 = 7,031.62 : x
  2. Step 2: Convert to fraction form
    10,378.64/14,327.17 = 7,031.62/x
  3. Step 3: Cross multiply
    10,378.64x = 14,327.17 × 7,031.62
  4. Step 4: Simplify right side
    10,378.64x = 100,743,215.12
  5. Step 5: Solve for x
    x = 100,743,215.12/10,378.64
  6. Step 6: Final answer
    x = 9,706.78

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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.