Home / 11,118.16-15,350.01-7,766.58

Finding the Fourth Proportional to 11,118.16, 15,350.01 and 7,766.58

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Solution

The fourth proportional to 11,118.16, 15,350.01 and 7,766.58 is: 10,722.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.16 : 15,350.01 = 7,766.58 : x
  2. Step 2: Convert to fraction form
    11,118.16/15,350.01 = 7,766.58/x
  3. Step 3: Cross multiply
    11,118.16x = 15,350.01 × 7,766.58
  4. Step 4: Simplify right side
    11,118.16x = 119,217,109.10
  5. Step 5: Solve for x
    x = 119,217,109.10/11,118.16
  6. Step 6: Final answer
    x = 10,722.74

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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.