Home / 10,917.13-15,065.63-5,949.13

Finding the Fourth Proportional to 10,917.13, 15,065.63 and 5,949.13

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Solution

The fourth proportional to 10,917.13, 15,065.63 and 5,949.13 is: 8,209.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.13 : 15,065.63 = 5,949.13 : x
  2. Step 2: Convert to fraction form
    10,917.13/15,065.63 = 5,949.13/x
  3. Step 3: Cross multiply
    10,917.13x = 15,065.63 × 5,949.13
  4. Step 4: Simplify right side
    10,917.13x = 89,627,391.40
  5. Step 5: Solve for x
    x = 89,627,391.40/10,917.13
  6. Step 6: Final answer
    x = 8,209.79

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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.