Home / 10,891.13-15,050.19-8,900.96

Finding the Fourth Proportional to 10,891.13, 15,050.19 and 8,900.96

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Solution

The fourth proportional to 10,891.13, 15,050.19 and 8,900.96 is: 12,300.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,891.13 : 15,050.19 = 8,900.96 : x
  2. Step 2: Convert to fraction form
    10,891.13/15,050.19 = 8,900.96/x
  3. Step 3: Cross multiply
    10,891.13x = 15,050.19 × 8,900.96
  4. Step 4: Simplify right side
    10,891.13x = 133,961,139.18
  5. Step 5: Solve for x
    x = 133,961,139.18/10,891.13
  6. Step 6: Final answer
    x = 12,300.02

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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.