Home / 13,273.61-18,319.68-9,700.30

Finding the Fourth Proportional to 13,273.61, 18,319.68 and 9,700.30

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Solution

The fourth proportional to 13,273.61, 18,319.68 and 9,700.30 is: 13,387.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,273.61 : 18,319.68 = 9,700.30 : x
  2. Step 2: Convert to fraction form
    13,273.61/18,319.68 = 9,700.30/x
  3. Step 3: Cross multiply
    13,273.61x = 18,319.68 × 9,700.30
  4. Step 4: Simplify right side
    13,273.61x = 177,706,391.90
  5. Step 5: Solve for x
    x = 177,706,391.90/13,273.61
  6. Step 6: Final answer
    x = 13,387.95

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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.