Home / 12,164.80-18,237.06-5,150.20

Finding the Fourth Proportional to 12,164.80, 18,237.06 and 5,150.20

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Solution

The fourth proportional to 12,164.80, 18,237.06 and 5,150.20 is: 7,721.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.80 : 18,237.06 = 5,150.20 : x
  2. Step 2: Convert to fraction form
    12,164.80/18,237.06 = 5,150.20/x
  3. Step 3: Cross multiply
    12,164.80x = 18,237.06 × 5,150.20
  4. Step 4: Simplify right side
    12,164.80x = 93,924,506.41
  5. Step 5: Solve for x
    x = 93,924,506.41/12,164.80
  6. Step 6: Final answer
    x = 7,721.01

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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.