Home / 12,545.91-17,313.53-6,881.20

Finding the Fourth Proportional to 12,545.91, 17,313.53 and 6,881.20

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Solution

The fourth proportional to 12,545.91, 17,313.53 and 6,881.20 is: 9,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.91 : 17,313.53 = 6,881.20 : x
  2. Step 2: Convert to fraction form
    12,545.91/17,313.53 = 6,881.20/x
  3. Step 3: Cross multiply
    12,545.91x = 17,313.53 × 6,881.20
  4. Step 4: Simplify right side
    12,545.91x = 119,137,776.07
  5. Step 5: Solve for x
    x = 119,137,776.07/12,545.91
  6. Step 6: Final answer
    x = 9,496.15

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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.