Home / 13,800.38-19,044.53-7,512.80

Finding the Fourth Proportional to 13,800.38, 19,044.53 and 7,512.80

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Solution

The fourth proportional to 13,800.38, 19,044.53 and 7,512.80 is: 10,367.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,800.38 : 19,044.53 = 7,512.80 : x
  2. Step 2: Convert to fraction form
    13,800.38/19,044.53 = 7,512.80/x
  3. Step 3: Cross multiply
    13,800.38x = 19,044.53 × 7,512.80
  4. Step 4: Simplify right side
    13,800.38x = 143,077,612.20
  5. Step 5: Solve for x
    x = 143,077,612.20/13,800.38
  6. Step 6: Final answer
    x = 10,367.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.