Home / 13,693.26-18,895.08-7,724.61

Finding the Fourth Proportional to 13,693.26, 18,895.08 and 7,724.61

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Solution

The fourth proportional to 13,693.26, 18,895.08 and 7,724.61 is: 10,659.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,693.26 : 18,895.08 = 7,724.61 : x
  2. Step 2: Convert to fraction form
    13,693.26/18,895.08 = 7,724.61/x
  3. Step 3: Cross multiply
    13,693.26x = 18,895.08 × 7,724.61
  4. Step 4: Simplify right side
    13,693.26x = 145,957,123.92
  5. Step 5: Solve for x
    x = 145,957,123.92/13,693.26
  6. Step 6: Final answer
    x = 10,659.05

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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.