Home / 11,127.43-15,366.26-7,155.44

Finding the Fourth Proportional to 11,127.43, 15,366.26 and 7,155.44

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Solution

The fourth proportional to 11,127.43, 15,366.26 and 7,155.44 is: 9,881.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,127.43 : 15,366.26 = 7,155.44 : x
  2. Step 2: Convert to fraction form
    11,127.43/15,366.26 = 7,155.44/x
  3. Step 3: Cross multiply
    11,127.43x = 15,366.26 × 7,155.44
  4. Step 4: Simplify right side
    11,127.43x = 109,952,309.89
  5. Step 5: Solve for x
    x = 109,952,309.89/11,127.43
  6. Step 6: Final answer
    x = 9,881.20

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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.