Home / 7,665.16-11,494.12-2,987.40

Finding the Fourth Proportional to 7,665.16, 11,494.12 and 2,987.40

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Solution

The fourth proportional to 7,665.16, 11,494.12 and 2,987.40 is: 4,479.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.16 : 11,494.12 = 2,987.40 : x
  2. Step 2: Convert to fraction form
    7,665.16/11,494.12 = 2,987.40/x
  3. Step 3: Cross multiply
    7,665.16x = 11,494.12 × 2,987.40
  4. Step 4: Simplify right side
    7,665.16x = 34,337,534.09
  5. Step 5: Solve for x
    x = 34,337,534.09/7,665.16
  6. Step 6: Final answer
    x = 4,479.69

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