Home / 8,923.78-13,385.90-3,000.76

Finding the Fourth Proportional to 8,923.78, 13,385.90 and 3,000.76

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Solution

The fourth proportional to 8,923.78, 13,385.90 and 3,000.76 is: 4,501.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,923.78 : 13,385.90 = 3,000.76 : x
  2. Step 2: Convert to fraction form
    8,923.78/13,385.90 = 3,000.76/x
  3. Step 3: Cross multiply
    8,923.78x = 13,385.90 × 3,000.76
  4. Step 4: Simplify right side
    8,923.78x = 40,167,873.28
  5. Step 5: Solve for x
    x = 40,167,873.28/8,923.78
  6. Step 6: Final answer
    x = 4,501.22

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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.