Home / 11,805.28-16,291.28-6,500.12

Finding the Fourth Proportional to 11,805.28, 16,291.28 and 6,500.12

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Solution

The fourth proportional to 11,805.28, 16,291.28 and 6,500.12 is: 8,970.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.28 : 16,291.28 = 6,500.12 : x
  2. Step 2: Convert to fraction form
    11,805.28/16,291.28 = 6,500.12/x
  3. Step 3: Cross multiply
    11,805.28x = 16,291.28 × 6,500.12
  4. Step 4: Simplify right side
    11,805.28x = 105,895,274.95
  5. Step 5: Solve for x
    x = 105,895,274.95/11,805.28
  6. Step 6: Final answer
    x = 8,970.16

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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.