Home / 13,561.02-20,342.88-4,200.66

Finding the Fourth Proportional to 13,561.02, 20,342.88 and 4,200.66

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Solution

The fourth proportional to 13,561.02, 20,342.88 and 4,200.66 is: 6,301.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,561.02 : 20,342.88 = 4,200.66 : x
  2. Step 2: Convert to fraction form
    13,561.02/20,342.88 = 4,200.66/x
  3. Step 3: Cross multiply
    13,561.02x = 20,342.88 × 4,200.66
  4. Step 4: Simplify right side
    13,561.02x = 85,453,522.30
  5. Step 5: Solve for x
    x = 85,453,522.30/13,561.02
  6. Step 6: Final answer
    x = 6,301.41

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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.