Home / 18,948.72-28,421.18-5,801.20

Finding the Fourth Proportional to 18,948.72, 28,421.18 and 5,801.20

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Solution

The fourth proportional to 18,948.72, 28,421.18 and 5,801.20 is: 8,701.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.72 : 28,421.18 = 5,801.20 : x
  2. Step 2: Convert to fraction form
    18,948.72/28,421.18 = 5,801.20/x
  3. Step 3: Cross multiply
    18,948.72x = 28,421.18 × 5,801.20
  4. Step 4: Simplify right side
    18,948.72x = 164,876,949.42
  5. Step 5: Solve for x
    x = 164,876,949.42/18,948.72
  6. Step 6: Final answer
    x = 8,701.22

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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.