Home / 9,170.91-12,655.60-5,192.39

Finding the Fourth Proportional to 9,170.91, 12,655.60 and 5,192.39

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Solution

The fourth proportional to 9,170.91, 12,655.60 and 5,192.39 is: 7,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.91 : 12,655.60 = 5,192.39 : x
  2. Step 2: Convert to fraction form
    9,170.91/12,655.60 = 5,192.39/x
  3. Step 3: Cross multiply
    9,170.91x = 12,655.60 × 5,192.39
  4. Step 4: Simplify right side
    9,170.91x = 65,712,810.88
  5. Step 5: Solve for x
    x = 65,712,810.88/9,170.91
  6. Step 6: Final answer
    x = 7,165.35

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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.