Home / 17,620.12-26,438.80-7,758.16

Finding the Fourth Proportional to 17,620.12, 26,438.80 and 7,758.16

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Solution

The fourth proportional to 17,620.12, 26,438.80 and 7,758.16 is: 11,641.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,620.12 : 26,438.80 = 7,758.16 : x
  2. Step 2: Convert to fraction form
    17,620.12/26,438.80 = 7,758.16/x
  3. Step 3: Cross multiply
    17,620.12x = 26,438.80 × 7,758.16
  4. Step 4: Simplify right side
    17,620.12x = 205,116,440.61
  5. Step 5: Solve for x
    x = 205,116,440.61/17,620.12
  6. Step 6: Final answer
    x = 11,641.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.