Home / 15,142.78-22,715.02-4,613.14

Finding the Fourth Proportional to 15,142.78, 22,715.02 and 4,613.14

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Solution

The fourth proportional to 15,142.78, 22,715.02 and 4,613.14 is: 6,919.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,142.78 : 22,715.02 = 4,613.14 : x
  2. Step 2: Convert to fraction form
    15,142.78/22,715.02 = 4,613.14/x
  3. Step 3: Cross multiply
    15,142.78x = 22,715.02 × 4,613.14
  4. Step 4: Simplify right side
    15,142.78x = 104,787,567.36
  5. Step 5: Solve for x
    x = 104,787,567.36/15,142.78
  6. Step 6: Final answer
    x = 6,919.97

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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.