Home / 8,919.57-13,379.50-4,240.07

Finding the Fourth Proportional to 8,919.57, 13,379.50 and 4,240.07

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Solution

The fourth proportional to 8,919.57, 13,379.50 and 4,240.07 is: 6,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,919.57 : 13,379.50 = 4,240.07 : x
  2. Step 2: Convert to fraction form
    8,919.57/13,379.50 = 4,240.07/x
  3. Step 3: Cross multiply
    8,919.57x = 13,379.50 × 4,240.07
  4. Step 4: Simplify right side
    8,919.57x = 56,729,928.47
  5. Step 5: Solve for x
    x = 56,729,928.47/8,919.57
  6. Step 6: Final answer
    x = 6,360.16

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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.