Home / 11,108.40-15,332.20-6,395.44

Finding the Fourth Proportional to 11,108.40, 15,332.20 and 6,395.44

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Solution

The fourth proportional to 11,108.40, 15,332.20 and 6,395.44 is: 8,827.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.40 : 15,332.20 = 6,395.44 : x
  2. Step 2: Convert to fraction form
    11,108.40/15,332.20 = 6,395.44/x
  3. Step 3: Cross multiply
    11,108.40x = 15,332.20 × 6,395.44
  4. Step 4: Simplify right side
    11,108.40x = 98,056,165.17
  5. Step 5: Solve for x
    x = 98,056,165.17/11,108.40
  6. Step 6: Final answer
    x = 8,827.21

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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.