Home / 10,434.06-15,623.31-8,159.88

Finding the Fourth Proportional to 10,434.06, 15,623.31 and 8,159.88

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Solution

The fourth proportional to 10,434.06, 15,623.31 and 8,159.88 is: 12,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434.06 : 15,623.31 = 8,159.88 : x
  2. Step 2: Convert to fraction form
    10,434.06/15,623.31 = 8,159.88/x
  3. Step 3: Cross multiply
    10,434.06x = 15,623.31 × 8,159.88
  4. Step 4: Simplify right side
    10,434.06x = 127,484,334.80
  5. Step 5: Solve for x
    x = 127,484,334.80/10,434.06
  6. Step 6: Final answer
    x = 12,218.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.