Home / 13,246.24-18,280.30-7,940.04

Finding the Fourth Proportional to 13,246.24, 18,280.30 and 7,940.04

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Solution

The fourth proportional to 13,246.24, 18,280.30 and 7,940.04 is: 10,957.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.24 : 18,280.30 = 7,940.04 : x
  2. Step 2: Convert to fraction form
    13,246.24/18,280.30 = 7,940.04/x
  3. Step 3: Cross multiply
    13,246.24x = 18,280.30 × 7,940.04
  4. Step 4: Simplify right side
    13,246.24x = 145,146,313.21
  5. Step 5: Solve for x
    x = 145,146,313.21/13,246.24
  6. Step 6: Final answer
    x = 10,957.55

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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.