Home / 12,407.59-18,612.60-4,087.67

Finding the Fourth Proportional to 12,407.59, 18,612.60 and 4,087.67

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Solution

The fourth proportional to 12,407.59, 18,612.60 and 4,087.67 is: 6,131.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,407.59 : 18,612.60 = 4,087.67 : x
  2. Step 2: Convert to fraction form
    12,407.59/18,612.60 = 4,087.67/x
  3. Step 3: Cross multiply
    12,407.59x = 18,612.60 × 4,087.67
  4. Step 4: Simplify right side
    12,407.59x = 76,082,146.20
  5. Step 5: Solve for x
    x = 76,082,146.20/12,407.59
  6. Step 6: Final answer
    x = 6,131.91

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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.