Home / 11,127.20-15,357.16-6,410.56

Finding the Fourth Proportional to 11,127.20, 15,357.16 and 6,410.56

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Solution

The fourth proportional to 11,127.20, 15,357.16 and 6,410.56 is: 8,847.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.20 : 15,357.16 = 6,410.56 : x
  2. Step 2: Convert to fraction form
    11,127.20/15,357.16 = 6,410.56/x
  3. Step 3: Cross multiply
    11,127.20x = 15,357.16 × 6,410.56
  4. Step 4: Simplify right side
    11,127.20x = 98,447,995.61
  5. Step 5: Solve for x
    x = 98,447,995.61/11,127.20
  6. Step 6: Final answer
    x = 8,847.51

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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.