Home / 12,818.48-19,229.88-4,053.20

Finding the Fourth Proportional to 12,818.48, 19,229.88 and 4,053.20

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Solution

The fourth proportional to 12,818.48, 19,229.88 and 4,053.20 is: 6,080.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,818.48 : 19,229.88 = 4,053.20 : x
  2. Step 2: Convert to fraction form
    12,818.48/19,229.88 = 4,053.20/x
  3. Step 3: Cross multiply
    12,818.48x = 19,229.88 × 4,053.20
  4. Step 4: Simplify right side
    12,818.48x = 77,942,549.62
  5. Step 5: Solve for x
    x = 77,942,549.62/12,818.48
  6. Step 6: Final answer
    x = 6,080.48

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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.