Home / 8,718.51-13,077.65-2,144.75

Finding the Fourth Proportional to 8,718.51, 13,077.65 and 2,144.75

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Solution

The fourth proportional to 8,718.51, 13,077.65 and 2,144.75 is: 3,217.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.51 : 13,077.65 = 2,144.75 : x
  2. Step 2: Convert to fraction form
    8,718.51/13,077.65 = 2,144.75/x
  3. Step 3: Cross multiply
    8,718.51x = 13,077.65 × 2,144.75
  4. Step 4: Simplify right side
    8,718.51x = 28,048,289.84
  5. Step 5: Solve for x
    x = 28,048,289.84/8,718.51
  6. Step 6: Final answer
    x = 3,217.10

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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.