Home / 13,471.04-20,243.48-12,706.80

Finding the Fourth Proportional to 13,471.04, 20,243.48 and 12,706.80

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Solution

The fourth proportional to 13,471.04, 20,243.48 and 12,706.80 is: 19,095.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.04 : 20,243.48 = 12,706.80 : x
  2. Step 2: Convert to fraction form
    13,471.04/20,243.48 = 12,706.80/x
  3. Step 3: Cross multiply
    13,471.04x = 20,243.48 × 12,706.80
  4. Step 4: Simplify right side
    13,471.04x = 257,229,851.66
  5. Step 5: Solve for x
    x = 257,229,851.66/13,471.04
  6. Step 6: Final answer
    x = 19,095.03

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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.