Home / 8,447.48-12,676.68-4,756.92

Finding the Fourth Proportional to 8,447.48, 12,676.68 and 4,756.92

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Solution

The fourth proportional to 8,447.48, 12,676.68 and 4,756.92 is: 7,138.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447.48 : 12,676.68 = 4,756.92 : x
  2. Step 2: Convert to fraction form
    8,447.48/12,676.68 = 4,756.92/x
  3. Step 3: Cross multiply
    8,447.48x = 12,676.68 × 4,756.92
  4. Step 4: Simplify right side
    8,447.48x = 60,301,952.63
  5. Step 5: Solve for x
    x = 60,301,952.63/8,447.48
  6. Step 6: Final answer
    x = 7,138.45

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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.