Home / 15,188.40-20,959.93-8,474.04

Finding the Fourth Proportional to 15,188.40, 20,959.93 and 8,474.04

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Solution

The fourth proportional to 15,188.40, 20,959.93 and 8,474.04 is: 11,694.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,188.40 : 20,959.93 = 8,474.04 : x
  2. Step 2: Convert to fraction form
    15,188.40/20,959.93 = 8,474.04/x
  3. Step 3: Cross multiply
    15,188.40x = 20,959.93 × 8,474.04
  4. Step 4: Simplify right side
    15,188.40x = 177,615,285.22
  5. Step 5: Solve for x
    x = 177,615,285.22/15,188.40
  6. Step 6: Final answer
    x = 11,694.14

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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.