Home / 7,551.88-11,272.35-6,665.13

Finding the Fourth Proportional to 7,551.88, 11,272.35 and 6,665.13

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Solution

The fourth proportional to 7,551.88, 11,272.35 and 6,665.13 is: 9,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.88 : 11,272.35 = 6,665.13 : x
  2. Step 2: Convert to fraction form
    7,551.88/11,272.35 = 6,665.13/x
  3. Step 3: Cross multiply
    7,551.88x = 11,272.35 × 6,665.13
  4. Step 4: Simplify right side
    7,551.88x = 75,131,703.15
  5. Step 5: Solve for x
    x = 75,131,703.15/7,551.88
  6. Step 6: Final answer
    x = 9,948.74

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Half scale
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Double scale
Find fourth proportional to 7,552.88, 11,273.85 and 6,666.13
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.