Home / 13,280.02-18,324.28-7,613.73

Finding the Fourth Proportional to 13,280.02, 18,324.28 and 7,613.73

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Solution

The fourth proportional to 13,280.02, 18,324.28 and 7,613.73 is: 10,505.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280.02 : 18,324.28 = 7,613.73 : x
  2. Step 2: Convert to fraction form
    13,280.02/18,324.28 = 7,613.73/x
  3. Step 3: Cross multiply
    13,280.02x = 18,324.28 × 7,613.73
  4. Step 4: Simplify right side
    13,280.02x = 139,516,120.36
  5. Step 5: Solve for x
    x = 139,516,120.36/13,280.02
  6. Step 6: Final answer
    x = 10,505.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.