Home / 11,062.30-15,249.86-8,405.10

Finding the Fourth Proportional to 11,062.30, 15,249.86 and 8,405.10

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Solution

The fourth proportional to 11,062.30, 15,249.86 and 8,405.10 is: 11,586.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,062.30 : 15,249.86 = 8,405.10 : x
  2. Step 2: Convert to fraction form
    11,062.30/15,249.86 = 8,405.10/x
  3. Step 3: Cross multiply
    11,062.30x = 15,249.86 × 8,405.10
  4. Step 4: Simplify right side
    11,062.30x = 128,176,598.29
  5. Step 5: Solve for x
    x = 128,176,598.29/11,062.30
  6. Step 6: Final answer
    x = 11,586.79

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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.