Home / 11,157.92-15,398.61-6,442.51

Finding the Fourth Proportional to 11,157.92, 15,398.61 and 6,442.51

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Solution

The fourth proportional to 11,157.92, 15,398.61 and 6,442.51 is: 8,891.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.92 : 15,398.61 = 6,442.51 : x
  2. Step 2: Convert to fraction form
    11,157.92/15,398.61 = 6,442.51/x
  3. Step 3: Cross multiply
    11,157.92x = 15,398.61 × 6,442.51
  4. Step 4: Simplify right side
    11,157.92x = 99,205,698.91
  5. Step 5: Solve for x
    x = 99,205,698.91/11,157.92
  6. Step 6: Final answer
    x = 8,891.06

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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.