Home / 13,742.22-20,615.76-4,384.29

Finding the Fourth Proportional to 13,742.22, 20,615.76 and 4,384.29

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Solution

The fourth proportional to 13,742.22, 20,615.76 and 4,384.29 is: 6,577.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,742.22 : 20,615.76 = 4,384.29 : x
  2. Step 2: Convert to fraction form
    13,742.22/20,615.76 = 4,384.29/x
  3. Step 3: Cross multiply
    13,742.22x = 20,615.76 × 4,384.29
  4. Step 4: Simplify right side
    13,742.22x = 90,385,470.41
  5. Step 5: Solve for x
    x = 90,385,470.41/13,742.22
  6. Step 6: Final answer
    x = 6,577.21

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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.