Home / 10,979.02-16,451.27-8,486.30

Finding the Fourth Proportional to 10,979.02, 16,451.27 and 8,486.30

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Solution

The fourth proportional to 10,979.02, 16,451.27 and 8,486.30 is: 12,716.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,979.02 : 16,451.27 = 8,486.30 : x
  2. Step 2: Convert to fraction form
    10,979.02/16,451.27 = 8,486.30/x
  3. Step 3: Cross multiply
    10,979.02x = 16,451.27 × 8,486.30
  4. Step 4: Simplify right side
    10,979.02x = 139,610,419.25
  5. Step 5: Solve for x
    x = 139,610,419.25/10,979.02
  6. Step 6: Final answer
    x = 12,716.11

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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.