Home / 9,117.06-12,582.66-5,139.15

Finding the Fourth Proportional to 9,117.06, 12,582.66 and 5,139.15

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Solution

The fourth proportional to 9,117.06, 12,582.66 and 5,139.15 is: 7,092.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.06 : 12,582.66 = 5,139.15 : x
  2. Step 2: Convert to fraction form
    9,117.06/12,582.66 = 5,139.15/x
  3. Step 3: Cross multiply
    9,117.06x = 12,582.66 × 5,139.15
  4. Step 4: Simplify right side
    9,117.06x = 64,664,177.14
  5. Step 5: Solve for x
    x = 64,664,177.14/9,117.06
  6. Step 6: Final answer
    x = 7,092.66

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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.