Home / 10,234.60-15,330.30-8,031.40

Finding the Fourth Proportional to 10,234.60, 15,330.30 and 8,031.40

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Solution

The fourth proportional to 10,234.60, 15,330.30 and 8,031.40 is: 12,030.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,234.60 : 15,330.30 = 8,031.40 : x
  2. Step 2: Convert to fraction form
    10,234.60/15,330.30 = 8,031.40/x
  3. Step 3: Cross multiply
    10,234.60x = 15,330.30 × 8,031.40
  4. Step 4: Simplify right side
    10,234.60x = 123,123,771.42
  5. Step 5: Solve for x
    x = 123,123,771.42/10,234.60
  6. Step 6: Final answer
    x = 12,030.15

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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.