Home / 19,320.68-28,981.02-6,174.20

Finding the Fourth Proportional to 19,320.68, 28,981.02 and 6,174.20

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Solution

The fourth proportional to 19,320.68, 28,981.02 and 6,174.20 is: 9,261.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,320.68 : 28,981.02 = 6,174.20 : x
  2. Step 2: Convert to fraction form
    19,320.68/28,981.02 = 6,174.20/x
  3. Step 3: Cross multiply
    19,320.68x = 28,981.02 × 6,174.20
  4. Step 4: Simplify right side
    19,320.68x = 178,934,613.68
  5. Step 5: Solve for x
    x = 178,934,613.68/19,320.68
  6. Step 6: Final answer
    x = 9,261.30

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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.