Home / 8,319.03-12,472.40-3,931.36

Finding the Fourth Proportional to 8,319.03, 12,472.40 and 3,931.36

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Solution

The fourth proportional to 8,319.03, 12,472.40 and 3,931.36 is: 5,894.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.03 : 12,472.40 = 3,931.36 : x
  2. Step 2: Convert to fraction form
    8,319.03/12,472.40 = 3,931.36/x
  3. Step 3: Cross multiply
    8,319.03x = 12,472.40 × 3,931.36
  4. Step 4: Simplify right side
    8,319.03x = 49,033,494.46
  5. Step 5: Solve for x
    x = 49,033,494.46/8,319.03
  6. Step 6: Final answer
    x = 5,894.14

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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.