Home / 8,774.48-13,162.40-2,931.11

Finding the Fourth Proportional to 8,774.48, 13,162.40 and 2,931.11

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Solution

The fourth proportional to 8,774.48, 13,162.40 and 2,931.11 is: 4,396.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.48 : 13,162.40 = 2,931.11 : x
  2. Step 2: Convert to fraction form
    8,774.48/13,162.40 = 2,931.11/x
  3. Step 3: Cross multiply
    8,774.48x = 13,162.40 × 2,931.11
  4. Step 4: Simplify right side
    8,774.48x = 38,580,383.78
  5. Step 5: Solve for x
    x = 38,580,383.78/8,774.48
  6. Step 6: Final answer
    x = 4,396.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.