Home / 12,132.84-18,199.77-4,236.15

Finding the Fourth Proportional to 12,132.84, 18,199.77 and 4,236.15

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Solution

The fourth proportional to 12,132.84, 18,199.77 and 4,236.15 is: 6,354.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.84 : 18,199.77 = 4,236.15 : x
  2. Step 2: Convert to fraction form
    12,132.84/18,199.77 = 4,236.15/x
  3. Step 3: Cross multiply
    12,132.84x = 18,199.77 × 4,236.15
  4. Step 4: Simplify right side
    12,132.84x = 77,096,955.69
  5. Step 5: Solve for x
    x = 77,096,955.69/12,132.84
  6. Step 6: Final answer
    x = 6,354.40

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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.