Home / 9,000.39-12,420.45-4,967.25

Finding the Fourth Proportional to 9,000.39, 12,420.45 and 4,967.25

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Solution

The fourth proportional to 9,000.39, 12,420.45 and 4,967.25 is: 6,854.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,000.39 : 12,420.45 = 4,967.25 : x
  2. Step 2: Convert to fraction form
    9,000.39/12,420.45 = 4,967.25/x
  3. Step 3: Cross multiply
    9,000.39x = 12,420.45 × 4,967.25
  4. Step 4: Simplify right side
    9,000.39x = 61,695,480.26
  5. Step 5: Solve for x
    x = 61,695,480.26/9,000.39
  6. Step 6: Final answer
    x = 6,854.76

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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.