Home / 8,722.12-12,038.58-5,367.04

Finding the Fourth Proportional to 8,722.12, 12,038.58 and 5,367.04

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Solution

The fourth proportional to 8,722.12, 12,038.58 and 5,367.04 is: 7,407.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.12 : 12,038.58 = 5,367.04 : x
  2. Step 2: Convert to fraction form
    8,722.12/12,038.58 = 5,367.04/x
  3. Step 3: Cross multiply
    8,722.12x = 12,038.58 × 5,367.04
  4. Step 4: Simplify right side
    8,722.12x = 64,611,540.40
  5. Step 5: Solve for x
    x = 64,611,540.40/8,722.12
  6. Step 6: Final answer
    x = 7,407.78

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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.