Home / 10,917.29-16,364.57-7,407.61

Finding the Fourth Proportional to 10,917.29, 16,364.57 and 7,407.61

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Solution

The fourth proportional to 10,917.29, 16,364.57 and 7,407.61 is: 11,103.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,917.29 : 16,364.57 = 7,407.61 : x
  2. Step 2: Convert to fraction form
    10,917.29/16,364.57 = 7,407.61/x
  3. Step 3: Cross multiply
    10,917.29x = 16,364.57 × 7,407.61
  4. Step 4: Simplify right side
    10,917.29x = 121,222,317.19
  5. Step 5: Solve for x
    x = 121,222,317.19/10,917.29
  6. Step 6: Final answer
    x = 11,103.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.