Home / 15,159.45-20,917.26-8,444.91

Finding the Fourth Proportional to 15,159.45, 20,917.26 and 8,444.91

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Solution

The fourth proportional to 15,159.45, 20,917.26 and 8,444.91 is: 11,652.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,159.45 : 20,917.26 = 8,444.91 : x
  2. Step 2: Convert to fraction form
    15,159.45/20,917.26 = 8,444.91/x
  3. Step 3: Cross multiply
    15,159.45x = 20,917.26 × 8,444.91
  4. Step 4: Simplify right side
    15,159.45x = 176,644,378.15
  5. Step 5: Solve for x
    x = 176,644,378.15/15,159.45
  6. Step 6: Final answer
    x = 11,652.43

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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.