Home / 7,718.12-11,577.18-5,126.12

Finding the Fourth Proportional to 7,718.12, 11,577.18 and 5,126.12

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Solution

The fourth proportional to 7,718.12, 11,577.18 and 5,126.12 is: 7,689.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.12 : 11,577.18 = 5,126.12 : x
  2. Step 2: Convert to fraction form
    7,718.12/11,577.18 = 5,126.12/x
  3. Step 3: Cross multiply
    7,718.12x = 11,577.18 × 5,126.12
  4. Step 4: Simplify right side
    7,718.12x = 59,346,013.94
  5. Step 5: Solve for x
    x = 59,346,013.94/7,718.12
  6. Step 6: Final answer
    x = 7,689.18

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