Home / 12,252.46-16,888.80-9,661.12

Finding the Fourth Proportional to 12,252.46, 16,888.80 and 9,661.12

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Solution

The fourth proportional to 12,252.46, 16,888.80 and 9,661.12 is: 13,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,252.46 : 16,888.80 = 9,661.12 : x
  2. Step 2: Convert to fraction form
    12,252.46/16,888.80 = 9,661.12/x
  3. Step 3: Cross multiply
    12,252.46x = 16,888.80 × 9,661.12
  4. Step 4: Simplify right side
    12,252.46x = 163,164,723.46
  5. Step 5: Solve for x
    x = 163,164,723.46/12,252.46
  6. Step 6: Final answer
    x = 13,316.90

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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.