Home / 15,254.19-21,049.79-8,539.76

Finding the Fourth Proportional to 15,254.19, 21,049.79 and 8,539.76

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Solution

The fourth proportional to 15,254.19, 21,049.79 and 8,539.76 is: 11,784.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,254.19 : 21,049.79 = 8,539.76 : x
  2. Step 2: Convert to fraction form
    15,254.19/21,049.79 = 8,539.76/x
  3. Step 3: Cross multiply
    15,254.19x = 21,049.79 × 8,539.76
  4. Step 4: Simplify right side
    15,254.19x = 179,760,006.70
  5. Step 5: Solve for x
    x = 179,760,006.70/15,254.19
  6. Step 6: Final answer
    x = 11,784.30

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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.