Home / 11,979.84-16,515.02-8,432.04

Finding the Fourth Proportional to 11,979.84, 16,515.02 and 8,432.04

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Solution

The fourth proportional to 11,979.84, 16,515.02 and 8,432.04 is: 11,624.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,979.84 : 16,515.02 = 8,432.04 : x
  2. Step 2: Convert to fraction form
    11,979.84/16,515.02 = 8,432.04/x
  3. Step 3: Cross multiply
    11,979.84x = 16,515.02 × 8,432.04
  4. Step 4: Simplify right side
    11,979.84x = 139,255,309.24
  5. Step 5: Solve for x
    x = 139,255,309.24/11,979.84
  6. Step 6: Final answer
    x = 11,624.14

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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.