Home / 8,988.20-12,403.51-5,212.04

Finding the Fourth Proportional to 8,988.20, 12,403.51 and 5,212.04

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Solution

The fourth proportional to 8,988.20, 12,403.51 and 5,212.04 is: 7,192.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.20 : 12,403.51 = 5,212.04 : x
  2. Step 2: Convert to fraction form
    8,988.20/12,403.51 = 5,212.04/x
  3. Step 3: Cross multiply
    8,988.20x = 12,403.51 × 5,212.04
  4. Step 4: Simplify right side
    8,988.20x = 64,647,590.26
  5. Step 5: Solve for x
    x = 64,647,590.26/8,988.20
  6. Step 6: Final answer
    x = 7,192.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.