Home / 10,917.68-15,066.40-5,949.68

Finding the Fourth Proportional to 10,917.68, 15,066.40 and 5,949.68

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Solution

The fourth proportional to 10,917.68, 15,066.40 and 5,949.68 is: 8,210.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.68 : 15,066.40 = 5,949.68 : x
  2. Step 2: Convert to fraction form
    10,917.68/15,066.40 = 5,949.68/x
  3. Step 3: Cross multiply
    10,917.68x = 15,066.40 × 5,949.68
  4. Step 4: Simplify right side
    10,917.68x = 89,640,258.75
  5. Step 5: Solve for x
    x = 89,640,258.75/10,917.68
  6. Step 6: Final answer
    x = 8,210.56

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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.