Home / 12,169.40-18,254.10-6,975.80

Finding the Fourth Proportional to 12,169.40, 18,254.10 and 6,975.80

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Solution

The fourth proportional to 12,169.40, 18,254.10 and 6,975.80 is: 10,463.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,169.40 : 18,254.10 = 6,975.80 : x
  2. Step 2: Convert to fraction form
    12,169.40/18,254.10 = 6,975.80/x
  3. Step 3: Cross multiply
    12,169.40x = 18,254.10 × 6,975.80
  4. Step 4: Simplify right side
    12,169.40x = 127,336,950.78
  5. Step 5: Solve for x
    x = 127,336,950.78/12,169.40
  6. Step 6: Final answer
    x = 10,463.70

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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.