Home / 11,027.84-15,215.40-7,666.88

Finding the Fourth Proportional to 11,027.84, 15,215.40 and 7,666.88

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Solution

The fourth proportional to 11,027.84, 15,215.40 and 7,666.88 is: 10,578.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,027.84 : 15,215.40 = 7,666.88 : x
  2. Step 2: Convert to fraction form
    11,027.84/15,215.40 = 7,666.88/x
  3. Step 3: Cross multiply
    11,027.84x = 15,215.40 × 7,666.88
  4. Step 4: Simplify right side
    11,027.84x = 116,654,645.95
  5. Step 5: Solve for x
    x = 116,654,645.95/11,027.84
  6. Step 6: Final answer
    x = 10,578.20

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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.