Home / 11,544.08-15,931.60-6,439.92

Finding the Fourth Proportional to 11,544.08, 15,931.60 and 6,439.92

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Solution

The fourth proportional to 11,544.08, 15,931.60 and 6,439.92 is: 8,887.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,544.08 : 15,931.60 = 6,439.92 : x
  2. Step 2: Convert to fraction form
    11,544.08/15,931.60 = 6,439.92/x
  3. Step 3: Cross multiply
    11,544.08x = 15,931.60 × 6,439.92
  4. Step 4: Simplify right side
    11,544.08x = 102,598,229.47
  5. Step 5: Solve for x
    x = 102,598,229.47/11,544.08
  6. Step 6: Final answer
    x = 8,887.52

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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.