Home / 15,979.68-22,048.20-9,690.84

Finding the Fourth Proportional to 15,979.68, 22,048.20 and 9,690.84

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Solution

The fourth proportional to 15,979.68, 22,048.20 and 9,690.84 is: 13,371.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.68 : 22,048.20 = 9,690.84 : x
  2. Step 2: Convert to fraction form
    15,979.68/22,048.20 = 9,690.84/x
  3. Step 3: Cross multiply
    15,979.68x = 22,048.20 × 9,690.84
  4. Step 4: Simplify right side
    15,979.68x = 213,665,578.49
  5. Step 5: Solve for x
    x = 213,665,578.49/15,979.68
  6. Step 6: Final answer
    x = 13,371.08

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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.