Home / 8,919.60-13,379.40-5,967.15

Finding the Fourth Proportional to 8,919.60, 13,379.40 and 5,967.15

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Solution

The fourth proportional to 8,919.60, 13,379.40 and 5,967.15 is: 8,950.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.60 : 13,379.40 = 5,967.15 : x
  2. Step 2: Convert to fraction form
    8,919.60/13,379.40 = 5,967.15/x
  3. Step 3: Cross multiply
    8,919.60x = 13,379.40 × 5,967.15
  4. Step 4: Simplify right side
    8,919.60x = 79,836,886.71
  5. Step 5: Solve for x
    x = 79,836,886.71/8,919.60
  6. Step 6: Final answer
    x = 8,950.73

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1.5x scale

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.