Home / 12,153.39-18,230.24-4,362.20

Finding the Fourth Proportional to 12,153.39, 18,230.24 and 4,362.20

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Solution

The fourth proportional to 12,153.39, 18,230.24 and 4,362.20 is: 6,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.39 : 18,230.24 = 4,362.20 : x
  2. Step 2: Convert to fraction form
    12,153.39/18,230.24 = 4,362.20/x
  3. Step 3: Cross multiply
    12,153.39x = 18,230.24 × 4,362.20
  4. Step 4: Simplify right side
    12,153.39x = 79,523,839.97
  5. Step 5: Solve for x
    x = 79,523,839.97/12,153.39
  6. Step 6: Final answer
    x = 6,543.35

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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.