Home / 13,306.68-18,363.92-9,326.34

Finding the Fourth Proportional to 13,306.68, 18,363.92 and 9,326.34

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Solution

The fourth proportional to 13,306.68, 18,363.92 and 9,326.34 is: 12,870.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,306.68 : 18,363.92 = 9,326.34 : x
  2. Step 2: Convert to fraction form
    13,306.68/18,363.92 = 9,326.34/x
  3. Step 3: Cross multiply
    13,306.68x = 18,363.92 × 9,326.34
  4. Step 4: Simplify right side
    13,306.68x = 171,268,115.02
  5. Step 5: Solve for x
    x = 171,268,115.02/13,306.68
  6. Step 6: Final answer
    x = 12,870.84

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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.