Home / 15,141.48-20,891.97-9,173.40

Finding the Fourth Proportional to 15,141.48, 20,891.97 and 9,173.40

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Solution

The fourth proportional to 15,141.48, 20,891.97 and 9,173.40 is: 12,657.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,141.48 : 20,891.97 = 9,173.40 : x
  2. Step 2: Convert to fraction form
    15,141.48/20,891.97 = 9,173.40/x
  3. Step 3: Cross multiply
    15,141.48x = 20,891.97 × 9,173.40
  4. Step 4: Simplify right side
    15,141.48x = 191,650,397.60
  5. Step 5: Solve for x
    x = 191,650,397.60/15,141.48
  6. Step 6: Final answer
    x = 12,657.31

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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.