Home / 11,076.90-15,306.75-8,565.90

Finding the Fourth Proportional to 11,076.90, 15,306.75 and 8,565.90

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Solution

The fourth proportional to 11,076.90, 15,306.75 and 8,565.90 is: 11,836.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,076.90 : 15,306.75 = 8,565.90 : x
  2. Step 2: Convert to fraction form
    11,076.90/15,306.75 = 8,565.90/x
  3. Step 3: Cross multiply
    11,076.90x = 15,306.75 × 8,565.90
  4. Step 4: Simplify right side
    11,076.90x = 131,116,089.83
  5. Step 5: Solve for x
    x = 131,116,089.83/11,076.90
  6. Step 6: Final answer
    x = 11,836.89

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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.