Home / 11,679.16-16,117.61-6,643.25

Finding the Fourth Proportional to 11,679.16, 16,117.61 and 6,643.25

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Solution

The fourth proportional to 11,679.16, 16,117.61 and 6,643.25 is: 9,167.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,679.16 : 16,117.61 = 6,643.25 : x
  2. Step 2: Convert to fraction form
    11,679.16/16,117.61 = 6,643.25/x
  3. Step 3: Cross multiply
    11,679.16x = 16,117.61 × 6,643.25
  4. Step 4: Simplify right side
    11,679.16x = 107,073,264.97
  5. Step 5: Solve for x
    x = 107,073,264.97/11,679.16
  6. Step 6: Final answer
    x = 9,167.89

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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.