Home / 11,343.32-15,654.12-6,867.89

Finding the Fourth Proportional to 11,343.32, 15,654.12 and 6,867.89

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Solution

The fourth proportional to 11,343.32, 15,654.12 and 6,867.89 is: 9,477.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343.32 : 15,654.12 = 6,867.89 : x
  2. Step 2: Convert to fraction form
    11,343.32/15,654.12 = 6,867.89/x
  3. Step 3: Cross multiply
    11,343.32x = 15,654.12 × 6,867.89
  4. Step 4: Simplify right side
    11,343.32x = 107,510,774.21
  5. Step 5: Solve for x
    x = 107,510,774.21/11,343.32
  6. Step 6: Final answer
    x = 9,477.89

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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.