Home / 19,657.48-27,128.20-11,591.46

Finding the Fourth Proportional to 19,657.48, 27,128.20 and 11,591.46

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Solution

The fourth proportional to 19,657.48, 27,128.20 and 11,591.46 is: 15,996.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,657.48 : 27,128.20 = 11,591.46 : x
  2. Step 2: Convert to fraction form
    19,657.48/27,128.20 = 11,591.46/x
  3. Step 3: Cross multiply
    19,657.48x = 27,128.20 × 11,591.46
  4. Step 4: Simplify right side
    19,657.48x = 314,455,445.17
  5. Step 5: Solve for x
    x = 314,455,445.17/19,657.48
  6. Step 6: Final answer
    x = 15,996.73

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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.