Home / 8,930.97-12,326.43-5,156.55

Finding the Fourth Proportional to 8,930.97, 12,326.43 and 5,156.55

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Solution

The fourth proportional to 8,930.97, 12,326.43 and 5,156.55 is: 7,117.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.97 : 12,326.43 = 5,156.55 : x
  2. Step 2: Convert to fraction form
    8,930.97/12,326.43 = 5,156.55/x
  3. Step 3: Cross multiply
    8,930.97x = 12,326.43 × 5,156.55
  4. Step 4: Simplify right side
    8,930.97x = 63,561,852.62
  5. Step 5: Solve for x
    x = 63,561,852.62/8,930.97
  6. Step 6: Final answer
    x = 7,117.02

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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.