Home / 8,680.16-13,021.68-3,483.20

Finding the Fourth Proportional to 8,680.16, 13,021.68 and 3,483.20

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Solution

The fourth proportional to 8,680.16, 13,021.68 and 3,483.20 is: 5,225.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.16 : 13,021.68 = 3,483.20 : x
  2. Step 2: Convert to fraction form
    8,680.16/13,021.68 = 3,483.20/x
  3. Step 3: Cross multiply
    8,680.16x = 13,021.68 × 3,483.20
  4. Step 4: Simplify right side
    8,680.16x = 45,357,115.78
  5. Step 5: Solve for x
    x = 45,357,115.78/8,680.16
  6. Step 6: Final answer
    x = 5,225.38

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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.