Home / 8,782.50-13,173.74-2,939.16

Finding the Fourth Proportional to 8,782.50, 13,173.74 and 2,939.16

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Solution

The fourth proportional to 8,782.50, 13,173.74 and 2,939.16 is: 4,408.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,782.50 : 13,173.74 = 2,939.16 : x
  2. Step 2: Convert to fraction form
    8,782.50/13,173.74 = 2,939.16/x
  3. Step 3: Cross multiply
    8,782.50x = 13,173.74 × 2,939.16
  4. Step 4: Simplify right side
    8,782.50x = 38,719,729.66
  5. Step 5: Solve for x
    x = 38,719,729.66/8,782.50
  6. Step 6: Final answer
    x = 4,408.74

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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.