Home / 10,920.98-16,353.68-7,217.66

Finding the Fourth Proportional to 10,920.98, 16,353.68 and 7,217.66

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Solution

The fourth proportional to 10,920.98, 16,353.68 and 7,217.66 is: 10,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,920.98 : 16,353.68 = 7,217.66 : x
  2. Step 2: Convert to fraction form
    10,920.98/16,353.68 = 7,217.66/x
  3. Step 3: Cross multiply
    10,920.98x = 16,353.68 × 7,217.66
  4. Step 4: Simplify right side
    10,920.98x = 118,035,347.38
  5. Step 5: Solve for x
    x = 118,035,347.38/10,920.98
  6. Step 6: Final answer
    x = 10,808.13

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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.