Home / 11,159.43-15,395.15-6,909.36

Finding the Fourth Proportional to 11,159.43, 15,395.15 and 6,909.36

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Solution

The fourth proportional to 11,159.43, 15,395.15 and 6,909.36 is: 9,531.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,159.43 : 15,395.15 = 6,909.36 : x
  2. Step 2: Convert to fraction form
    11,159.43/15,395.15 = 6,909.36/x
  3. Step 3: Cross multiply
    11,159.43x = 15,395.15 × 6,909.36
  4. Step 4: Simplify right side
    11,159.43x = 106,370,633.60
  5. Step 5: Solve for x
    x = 106,370,633.60/11,159.43
  6. Step 6: Final answer
    x = 9,531.91

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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.