Home / 12,306.14-16,992.15-9,908.50

Finding the Fourth Proportional to 12,306.14, 16,992.15 and 9,908.50

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Solution

The fourth proportional to 12,306.14, 16,992.15 and 9,908.50 is: 13,681.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,306.14 : 16,992.15 = 9,908.50 : x
  2. Step 2: Convert to fraction form
    12,306.14/16,992.15 = 9,908.50/x
  3. Step 3: Cross multiply
    12,306.14x = 16,992.15 × 9,908.50
  4. Step 4: Simplify right side
    12,306.14x = 168,366,718.28
  5. Step 5: Solve for x
    x = 168,366,718.28/12,306.14
  6. Step 6: Final answer
    x = 13,681.52

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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.