Home / 12,207.20-18,302.37-4,812.50

Finding the Fourth Proportional to 12,207.20, 18,302.37 and 4,812.50

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Solution

The fourth proportional to 12,207.20, 18,302.37 and 4,812.50 is: 7,215.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.20 : 18,302.37 = 4,812.50 : x
  2. Step 2: Convert to fraction form
    12,207.20/18,302.37 = 4,812.50/x
  3. Step 3: Cross multiply
    12,207.20x = 18,302.37 × 4,812.50
  4. Step 4: Simplify right side
    12,207.20x = 88,080,064.11
  5. Step 5: Solve for x
    x = 88,080,064.11/12,207.20
  6. Step 6: Final answer
    x = 7,215.42

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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.