Home / 13,531.77-20,307.38-8,341.29

Finding the Fourth Proportional to 13,531.77, 20,307.38 and 8,341.29

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Solution

The fourth proportional to 13,531.77, 20,307.38 and 8,341.29 is: 12,517.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.77 : 20,307.38 = 8,341.29 : x
  2. Step 2: Convert to fraction form
    13,531.77/20,307.38 = 8,341.29/x
  3. Step 3: Cross multiply
    13,531.77x = 20,307.38 × 8,341.29
  4. Step 4: Simplify right side
    13,531.77x = 169,389,704.01
  5. Step 5: Solve for x
    x = 169,389,704.01/13,531.77
  6. Step 6: Final answer
    x = 12,517.93

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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.