Home / 8,015.18-11,060.16-4,478.72

Finding the Fourth Proportional to 8,015.18, 11,060.16 and 4,478.72

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Solution

The fourth proportional to 8,015.18, 11,060.16 and 4,478.72 is: 6,180.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.18 : 11,060.16 = 4,478.72 : x
  2. Step 2: Convert to fraction form
    8,015.18/11,060.16 = 4,478.72/x
  3. Step 3: Cross multiply
    8,015.18x = 11,060.16 × 4,478.72
  4. Step 4: Simplify right side
    8,015.18x = 49,535,359.80
  5. Step 5: Solve for x
    x = 49,535,359.80/8,015.18
  6. Step 6: Final answer
    x = 6,180.19

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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.