Home / 15,776.06-21,761.30-10,108.89

Finding the Fourth Proportional to 15,776.06, 21,761.30 and 10,108.89

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Solution

The fourth proportional to 15,776.06, 21,761.30 and 10,108.89 is: 13,944.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776.06 : 21,761.30 = 10,108.89 : x
  2. Step 2: Convert to fraction form
    15,776.06/21,761.30 = 10,108.89/x
  3. Step 3: Cross multiply
    15,776.06x = 21,761.30 × 10,108.89
  4. Step 4: Simplify right side
    15,776.06x = 219,982,537.41
  5. Step 5: Solve for x
    x = 219,982,537.41/15,776.06
  6. Step 6: Final answer
    x = 13,944.08

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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.