Home / 12,545.34-17,312.29-7,168.02

Finding the Fourth Proportional to 12,545.34, 17,312.29 and 7,168.02

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Solution

The fourth proportional to 12,545.34, 17,312.29 and 7,168.02 is: 9,891.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.34 : 17,312.29 = 7,168.02 : x
  2. Step 2: Convert to fraction form
    12,545.34/17,312.29 = 7,168.02/x
  3. Step 3: Cross multiply
    12,545.34x = 17,312.29 × 7,168.02
  4. Step 4: Simplify right side
    12,545.34x = 124,094,840.97
  5. Step 5: Solve for x
    x = 124,094,840.97/12,545.34
  6. Step 6: Final answer
    x = 9,891.71

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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.