Home / 13,248.38-18,283.11-7,280.37

Finding the Fourth Proportional to 13,248.38, 18,283.11 and 7,280.37

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Solution

The fourth proportional to 13,248.38, 18,283.11 and 7,280.37 is: 10,047.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.38 : 18,283.11 = 7,280.37 : x
  2. Step 2: Convert to fraction form
    13,248.38/18,283.11 = 7,280.37/x
  3. Step 3: Cross multiply
    13,248.38x = 18,283.11 × 7,280.37
  4. Step 4: Simplify right side
    13,248.38x = 133,107,805.55
  5. Step 5: Solve for x
    x = 133,107,805.55/13,248.38
  6. Step 6: Final answer
    x = 10,047.10

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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.