Home / 18,862.24-28,300.64-5,714.72

Finding the Fourth Proportional to 18,862.24, 28,300.64 and 5,714.72

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Solution

The fourth proportional to 18,862.24, 28,300.64 and 5,714.72 is: 8,574.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.24 : 28,300.64 = 5,714.72 : x
  2. Step 2: Convert to fraction form
    18,862.24/28,300.64 = 5,714.72/x
  3. Step 3: Cross multiply
    18,862.24x = 28,300.64 × 5,714.72
  4. Step 4: Simplify right side
    18,862.24x = 161,730,233.42
  5. Step 5: Solve for x
    x = 161,730,233.42/18,862.24
  6. Step 6: Final answer
    x = 8,574.29

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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.