Home / 12,382.13-17,088.52-7,075.92

Finding the Fourth Proportional to 12,382.13, 17,088.52 and 7,075.92

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Solution

The fourth proportional to 12,382.13, 17,088.52 and 7,075.92 is: 9,765.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,382.13 : 17,088.52 = 7,075.92 : x
  2. Step 2: Convert to fraction form
    12,382.13/17,088.52 = 7,075.92/x
  3. Step 3: Cross multiply
    12,382.13x = 17,088.52 × 7,075.92
  4. Step 4: Simplify right side
    12,382.13x = 120,917,000.44
  5. Step 5: Solve for x
    x = 120,917,000.44/12,382.13
  6. Step 6: Final answer
    x = 9,765.44

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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.