Home / 10,881.60-16,320.64-4,305.92

Finding the Fourth Proportional to 10,881.60, 16,320.64 and 4,305.92

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Solution

The fourth proportional to 10,881.60, 16,320.64 and 4,305.92 is: 6,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,881.60 : 16,320.64 = 4,305.92 : x
  2. Step 2: Convert to fraction form
    10,881.60/16,320.64 = 4,305.92/x
  3. Step 3: Cross multiply
    10,881.60x = 16,320.64 × 4,305.92
  4. Step 4: Simplify right side
    10,881.60x = 70,275,370.19
  5. Step 5: Solve for x
    x = 70,275,370.19/10,881.60
  6. Step 6: Final answer
    x = 6,458.18

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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.