Home / 9,170.79-12,655.47-5,192.88

Finding the Fourth Proportional to 9,170.79, 12,655.47 and 5,192.88

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Solution

The fourth proportional to 9,170.79, 12,655.47 and 5,192.88 is: 7,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.79 : 12,655.47 = 5,192.88 : x
  2. Step 2: Convert to fraction form
    9,170.79/12,655.47 = 5,192.88/x
  3. Step 3: Cross multiply
    9,170.79x = 12,655.47 × 5,192.88
  4. Step 4: Simplify right side
    9,170.79x = 65,718,337.05
  5. Step 5: Solve for x
    x = 65,718,337.05/9,170.79
  6. Step 6: Final answer
    x = 7,166.05

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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.