Home / 12,574.90-18,862.44-3,809.80

Finding the Fourth Proportional to 12,574.90, 18,862.44 and 3,809.80

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Solution

The fourth proportional to 12,574.90, 18,862.44 and 3,809.80 is: 5,714.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,574.90 : 18,862.44 = 3,809.80 : x
  2. Step 2: Convert to fraction form
    12,574.90/18,862.44 = 3,809.80/x
  3. Step 3: Cross multiply
    12,574.90x = 18,862.44 × 3,809.80
  4. Step 4: Simplify right side
    12,574.90x = 71,862,123.91
  5. Step 5: Solve for x
    x = 71,862,123.91/12,574.90
  6. Step 6: Final answer
    x = 5,714.73

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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.