Home / 12,144.84-18,220.01-3,712.11

Finding the Fourth Proportional to 12,144.84, 18,220.01 and 3,712.11

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Solution

The fourth proportional to 12,144.84, 18,220.01 and 3,712.11 is: 5,569.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,144.84 : 18,220.01 = 3,712.11 : x
  2. Step 2: Convert to fraction form
    12,144.84/18,220.01 = 3,712.11/x
  3. Step 3: Cross multiply
    12,144.84x = 18,220.01 × 3,712.11
  4. Step 4: Simplify right side
    12,144.84x = 67,634,662.76
  5. Step 5: Solve for x
    x = 67,634,662.76/12,144.84
  6. Step 6: Final answer
    x = 5,569.00

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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.