Home / 13,445.80-20,167.08-5,122.24

Finding the Fourth Proportional to 13,445.80, 20,167.08 and 5,122.24

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Solution

The fourth proportional to 13,445.80, 20,167.08 and 5,122.24 is: 7,682.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,445.80 : 20,167.08 = 5,122.24 : x
  2. Step 2: Convert to fraction form
    13,445.80/20,167.08 = 5,122.24/x
  3. Step 3: Cross multiply
    13,445.80x = 20,167.08 × 5,122.24
  4. Step 4: Simplify right side
    13,445.80x = 103,300,623.86
  5. Step 5: Solve for x
    x = 103,300,623.86/13,445.80
  6. Step 6: Final answer
    x = 7,682.74

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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.