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Finding the Fourth Proportional to 10,633.78, 15,950.68 and 8,776.90

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Solution

The fourth proportional to 10,633.78, 15,950.68 and 8,776.90 is: 13,165.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,633.78 : 15,950.68 = 8,776.90 : x
  2. Step 2: Convert to fraction form
    10,633.78/15,950.68 = 8,776.90/x
  3. Step 3: Cross multiply
    10,633.78x = 15,950.68 × 8,776.90
  4. Step 4: Simplify right side
    10,633.78x = 139,997,523.29
  5. Step 5: Solve for x
    x = 139,997,523.29/10,633.78
  6. Step 6: Final answer
    x = 13,165.36

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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.