Home / 9,177.19-12,669.90-6,656.88

Finding the Fourth Proportional to 9,177.19, 12,669.90 and 6,656.88

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Solution

The fourth proportional to 9,177.19, 12,669.90 and 6,656.88 is: 9,190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,177.19 : 12,669.90 = 6,656.88 : x
  2. Step 2: Convert to fraction form
    9,177.19/12,669.90 = 6,656.88/x
  3. Step 3: Cross multiply
    9,177.19x = 12,669.90 × 6,656.88
  4. Step 4: Simplify right side
    9,177.19x = 84,342,003.91
  5. Step 5: Solve for x
    x = 84,342,003.91/9,177.19
  6. Step 6: Final answer
    x = 9,190.40

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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.