Home / 12,150.25-16,769.12-7,116.03

Finding the Fourth Proportional to 12,150.25, 16,769.12 and 7,116.03

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Solution

The fourth proportional to 12,150.25, 16,769.12 and 7,116.03 is: 9,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,150.25 : 16,769.12 = 7,116.03 : x
  2. Step 2: Convert to fraction form
    12,150.25/16,769.12 = 7,116.03/x
  3. Step 3: Cross multiply
    12,150.25x = 16,769.12 × 7,116.03
  4. Step 4: Simplify right side
    12,150.25x = 119,329,525.41
  5. Step 5: Solve for x
    x = 119,329,525.41/12,150.25
  6. Step 6: Final answer
    x = 9,821.16

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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.