Home / 11,370.78-15,693.12-6,654.96

Finding the Fourth Proportional to 11,370.78, 15,693.12 and 6,654.96

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Solution

The fourth proportional to 11,370.78, 15,693.12 and 6,654.96 is: 9,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,370.78 : 15,693.12 = 6,654.96 : x
  2. Step 2: Convert to fraction form
    11,370.78/15,693.12 = 6,654.96/x
  3. Step 3: Cross multiply
    11,370.78x = 15,693.12 × 6,654.96
  4. Step 4: Simplify right side
    11,370.78x = 104,437,085.88
  5. Step 5: Solve for x
    x = 104,437,085.88/11,370.78
  6. Step 6: Final answer
    x = 9,184.69

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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.