Home / 12,176.20-16,719.77-9,800.20

Finding the Fourth Proportional to 12,176.20, 16,719.77 and 9,800.20

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Solution

The fourth proportional to 12,176.20, 16,719.77 and 9,800.20 is: 13,457.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,176.20 : 16,719.77 = 9,800.20 : x
  2. Step 2: Convert to fraction form
    12,176.20/16,719.77 = 9,800.20/x
  3. Step 3: Cross multiply
    12,176.20x = 16,719.77 × 9,800.20
  4. Step 4: Simplify right side
    12,176.20x = 163,857,089.95
  5. Step 5: Solve for x
    x = 163,857,089.95/12,176.20
  6. Step 6: Final answer
    x = 13,457.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.