Home / 10,131.60-13,966.29-7,889.52

Finding the Fourth Proportional to 10,131.60, 13,966.29 and 7,889.52

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Solution

The fourth proportional to 10,131.60, 13,966.29 and 7,889.52 is: 10,875.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.60 : 13,966.29 = 7,889.52 : x
  2. Step 2: Convert to fraction form
    10,131.60/13,966.29 = 7,889.52/x
  3. Step 3: Cross multiply
    10,131.60x = 13,966.29 × 7,889.52
  4. Step 4: Simplify right side
    10,131.60x = 110,187,324.28
  5. Step 5: Solve for x
    x = 110,187,324.28/10,131.60
  6. Step 6: Final answer
    x = 10,875.61

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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.