Home / 8,447.45-12,663.34-4,007.20

Finding the Fourth Proportional to 8,447.45, 12,663.34 and 4,007.20

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Solution

The fourth proportional to 8,447.45, 12,663.34 and 4,007.20 is: 6,007.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.45 : 12,663.34 = 4,007.20 : x
  2. Step 2: Convert to fraction form
    8,447.45/12,663.34 = 4,007.20/x
  3. Step 3: Cross multiply
    8,447.45x = 12,663.34 × 4,007.20
  4. Step 4: Simplify right side
    8,447.45x = 50,744,522.57
  5. Step 5: Solve for x
    x = 50,744,522.57/8,447.45
  6. Step 6: Final answer
    x = 6,007.08

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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.