Home / 9,350.11-12,900.85-5,715.23

Finding the Fourth Proportional to 9,350.11, 12,900.85 and 5,715.23

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Solution

The fourth proportional to 9,350.11, 12,900.85 and 5,715.23 is: 7,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,350.11 : 12,900.85 = 5,715.23 : x
  2. Step 2: Convert to fraction form
    9,350.11/12,900.85 = 5,715.23/x
  3. Step 3: Cross multiply
    9,350.11x = 12,900.85 × 5,715.23
  4. Step 4: Simplify right side
    9,350.11x = 73,731,231.87
  5. Step 5: Solve for x
    x = 73,731,231.87/9,350.11
  6. Step 6: Final answer
    x = 7,885.60

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.