Home / 8,015.13-11,060.85-4,478.34

Finding the Fourth Proportional to 8,015.13, 11,060.85 and 4,478.34

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Solution

The fourth proportional to 8,015.13, 11,060.85 and 4,478.34 is: 6,180.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.13 : 11,060.85 = 4,478.34 : x
  2. Step 2: Convert to fraction form
    8,015.13/11,060.85 = 4,478.34/x
  3. Step 3: Cross multiply
    8,015.13x = 11,060.85 × 4,478.34
  4. Step 4: Simplify right side
    8,015.13x = 49,534,289.71
  5. Step 5: Solve for x
    x = 49,534,289.71/8,015.13
  6. Step 6: Final answer
    x = 6,180.10

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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.