Home / 10,956.40-16,402.20-7,262.80

Finding the Fourth Proportional to 10,956.40, 16,402.20 and 7,262.80

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Solution

The fourth proportional to 10,956.40, 16,402.20 and 7,262.80 is: 10,872.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,956.40 : 16,402.20 = 7,262.80 : x
  2. Step 2: Convert to fraction form
    10,956.40/16,402.20 = 7,262.80/x
  3. Step 3: Cross multiply
    10,956.40x = 16,402.20 × 7,262.80
  4. Step 4: Simplify right side
    10,956.40x = 119,125,898.16
  5. Step 5: Solve for x
    x = 119,125,898.16/10,956.40
  6. Step 6: Final answer
    x = 10,872.72

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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.