Home / 10,886.40-16,317.12-6,208.80

Finding the Fourth Proportional to 10,886.40, 16,317.12 and 6,208.80

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Solution

The fourth proportional to 10,886.40, 16,317.12 and 6,208.80 is: 9,306.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,886.40 : 16,317.12 = 6,208.80 : x
  2. Step 2: Convert to fraction form
    10,886.40/16,317.12 = 6,208.80/x
  3. Step 3: Cross multiply
    10,886.40x = 16,317.12 × 6,208.80
  4. Step 4: Simplify right side
    10,886.40x = 101,309,734.66
  5. Step 5: Solve for x
    x = 101,309,734.66/10,886.40
  6. Step 6: Final answer
    x = 9,306.08

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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.