Home / 11,079.16-15,288.64-6,363.44

Finding the Fourth Proportional to 11,079.16, 15,288.64 and 6,363.44

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Solution

The fourth proportional to 11,079.16, 15,288.64 and 6,363.44 is: 8,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.16 : 15,288.64 = 6,363.44 : x
  2. Step 2: Convert to fraction form
    11,079.16/15,288.64 = 6,363.44/x
  3. Step 3: Cross multiply
    11,079.16x = 15,288.64 × 6,363.44
  4. Step 4: Simplify right side
    11,079.16x = 97,288,381.54
  5. Step 5: Solve for x
    x = 97,288,381.54/11,079.16
  6. Step 6: Final answer
    x = 8,781.21

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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.