Home / 15,301.88-21,116.31-8,586.98

Finding the Fourth Proportional to 15,301.88, 21,116.31 and 8,586.98

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Solution

The fourth proportional to 15,301.88, 21,116.31 and 8,586.98 is: 11,849.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.88 : 21,116.31 = 8,586.98 : x
  2. Step 2: Convert to fraction form
    15,301.88/21,116.31 = 8,586.98/x
  3. Step 3: Cross multiply
    15,301.88x = 21,116.31 × 8,586.98
  4. Step 4: Simplify right side
    15,301.88x = 181,325,226.06
  5. Step 5: Solve for x
    x = 181,325,226.06/15,301.88
  6. Step 6: Final answer
    x = 11,849.87

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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.