Home / 12,151.59-18,228.90-4,755.09

Finding the Fourth Proportional to 12,151.59, 18,228.90 and 4,755.09

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Solution

The fourth proportional to 12,151.59, 18,228.90 and 4,755.09 is: 7,133.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,151.59 : 18,228.90 = 4,755.09 : x
  2. Step 2: Convert to fraction form
    12,151.59/18,228.90 = 4,755.09/x
  3. Step 3: Cross multiply
    12,151.59x = 18,228.90 × 4,755.09
  4. Step 4: Simplify right side
    12,151.59x = 86,680,017.01
  5. Step 5: Solve for x
    x = 86,680,017.01/12,151.59
  6. Step 6: Final answer
    x = 7,133.23

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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.