Home / 8,820.75-13,214.16-5,479.08

Finding the Fourth Proportional to 8,820.75, 13,214.16 and 5,479.08

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Solution

The fourth proportional to 8,820.75, 13,214.16 and 5,479.08 is: 8,208.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.75 : 13,214.16 = 5,479.08 : x
  2. Step 2: Convert to fraction form
    8,820.75/13,214.16 = 5,479.08/x
  3. Step 3: Cross multiply
    8,820.75x = 13,214.16 × 5,479.08
  4. Step 4: Simplify right side
    8,820.75x = 72,401,439.77
  5. Step 5: Solve for x
    x = 72,401,439.77/8,820.75
  6. Step 6: Final answer
    x = 8,208.08

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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.