Home / 11,643.12-17,380.15-10,775.79

Finding the Fourth Proportional to 11,643.12, 17,380.15 and 10,775.79

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Solution

The fourth proportional to 11,643.12, 17,380.15 and 10,775.79 is: 16,085.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,643.12 : 17,380.15 = 10,775.79 : x
  2. Step 2: Convert to fraction form
    11,643.12/17,380.15 = 10,775.79/x
  3. Step 3: Cross multiply
    11,643.12x = 17,380.15 × 10,775.79
  4. Step 4: Simplify right side
    11,643.12x = 187,284,819.63
  5. Step 5: Solve for x
    x = 187,284,819.63/11,643.12
  6. Step 6: Final answer
    x = 16,085.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.