Home / 13,568.18-20,339.30-8,622.50

Finding the Fourth Proportional to 13,568.18, 20,339.30 and 8,622.50

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Solution

The fourth proportional to 13,568.18, 20,339.30 and 8,622.50 is: 12,925.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,568.18 : 20,339.30 = 8,622.50 : x
  2. Step 2: Convert to fraction form
    13,568.18/20,339.30 = 8,622.50/x
  3. Step 3: Cross multiply
    13,568.18x = 20,339.30 × 8,622.50
  4. Step 4: Simplify right side
    13,568.18x = 175,375,614.25
  5. Step 5: Solve for x
    x = 175,375,614.25/13,568.18
  6. Step 6: Final answer
    x = 12,925.51

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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.