Home / 10,989.85-16,484.78-7,299.29

Finding the Fourth Proportional to 10,989.85, 16,484.78 and 7,299.29

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Solution

The fourth proportional to 10,989.85, 16,484.78 and 7,299.29 is: 10,948.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.85 : 16,484.78 = 7,299.29 : x
  2. Step 2: Convert to fraction form
    10,989.85/16,484.78 = 7,299.29/x
  3. Step 3: Cross multiply
    10,989.85x = 16,484.78 × 7,299.29
  4. Step 4: Simplify right side
    10,989.85x = 120,327,189.81
  5. Step 5: Solve for x
    x = 120,327,189.81/10,989.85
  6. Step 6: Final answer
    x = 10,948.94

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Double scale
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Similar ratio
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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.