Home / 8,679.29-13,008.63-3,995.40

Finding the Fourth Proportional to 8,679.29, 13,008.63 and 3,995.40

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Solution

The fourth proportional to 8,679.29, 13,008.63 and 3,995.40 is: 5,988.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.29 : 13,008.63 = 3,995.40 : x
  2. Step 2: Convert to fraction form
    8,679.29/13,008.63 = 3,995.40/x
  3. Step 3: Cross multiply
    8,679.29x = 13,008.63 × 3,995.40
  4. Step 4: Simplify right side
    8,679.29x = 51,974,680.30
  5. Step 5: Solve for x
    x = 51,974,680.30/8,679.29
  6. Step 6: Final answer
    x = 5,988.36

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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.