Home / 12,436.32-17,178.48-9,287.04

Finding the Fourth Proportional to 12,436.32, 17,178.48 and 9,287.04

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Solution

The fourth proportional to 12,436.32, 17,178.48 and 9,287.04 is: 12,828.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436.32 : 17,178.48 = 9,287.04 : x
  2. Step 2: Convert to fraction form
    12,436.32/17,178.48 = 9,287.04/x
  3. Step 3: Cross multiply
    12,436.32x = 17,178.48 × 9,287.04
  4. Step 4: Simplify right side
    12,436.32x = 159,537,230.90
  5. Step 5: Solve for x
    x = 159,537,230.90/12,436.32
  6. Step 6: Final answer
    x = 12,828.33

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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.