Home / 13,417.85-20,116.35-6,659.36

Finding the Fourth Proportional to 13,417.85, 20,116.35 and 6,659.36

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Solution

The fourth proportional to 13,417.85, 20,116.35 and 6,659.36 is: 9,983.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.85 : 20,116.35 = 6,659.36 : x
  2. Step 2: Convert to fraction form
    13,417.85/20,116.35 = 6,659.36/x
  3. Step 3: Cross multiply
    13,417.85x = 20,116.35 × 6,659.36
  4. Step 4: Simplify right side
    13,417.85x = 133,962,104.55
  5. Step 5: Solve for x
    x = 133,962,104.55/13,417.85
  6. Step 6: Final answer
    x = 9,983.87

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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.