Home / 6,655.62-9,188.28-5,160.18

Finding the Fourth Proportional to 6,655.62, 9,188.28 and 5,160.18

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Solution

The fourth proportional to 6,655.62, 9,188.28 and 5,160.18 is: 7,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.62 : 9,188.28 = 5,160.18 : x
  2. Step 2: Convert to fraction form
    6,655.62/9,188.28 = 5,160.18/x
  3. Step 3: Cross multiply
    6,655.62x = 9,188.28 × 5,160.18
  4. Step 4: Simplify right side
    6,655.62x = 47,413,178.69
  5. Step 5: Solve for x
    x = 47,413,178.69/6,655.62
  6. Step 6: Final answer
    x = 7,123.78

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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.