Home / 11,167.61-15,411.66-6,451.89

Finding the Fourth Proportional to 11,167.61, 15,411.66 and 6,451.89

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Solution

The fourth proportional to 11,167.61, 15,411.66 and 6,451.89 is: 8,903.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.61 : 15,411.66 = 6,451.89 : x
  2. Step 2: Convert to fraction form
    11,167.61/15,411.66 = 6,451.89/x
  3. Step 3: Cross multiply
    11,167.61x = 15,411.66 × 6,451.89
  4. Step 4: Simplify right side
    11,167.61x = 99,434,271.20
  5. Step 5: Solve for x
    x = 99,434,271.20/11,167.61
  6. Step 6: Final answer
    x = 8,903.81

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Half scale
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Double scale
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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.