Home / 9,000.45-12,421.23-5,021.52

Finding the Fourth Proportional to 9,000.45, 12,421.23 and 5,021.52

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Solution

The fourth proportional to 9,000.45, 12,421.23 and 5,021.52 is: 6,930.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.45 : 12,421.23 = 5,021.52 : x
  2. Step 2: Convert to fraction form
    9,000.45/12,421.23 = 5,021.52/x
  3. Step 3: Cross multiply
    9,000.45x = 12,421.23 × 5,021.52
  4. Step 4: Simplify right side
    9,000.45x = 62,373,454.87
  5. Step 5: Solve for x
    x = 62,373,454.87/9,000.45
  6. Step 6: Final answer
    x = 6,930.04

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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.