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Finding the Fourth Proportional to 10,950.78, 16,412.30 and 7,000.51

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Solution

The fourth proportional to 10,950.78, 16,412.30 and 7,000.51 is: 10,491.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,950.78 : 16,412.30 = 7,000.51 : x
  2. Step 2: Convert to fraction form
    10,950.78/16,412.30 = 7,000.51/x
  3. Step 3: Cross multiply
    10,950.78x = 16,412.30 × 7,000.51
  4. Step 4: Simplify right side
    10,950.78x = 114,894,470.27
  5. Step 5: Solve for x
    x = 114,894,470.27/10,950.78
  6. Step 6: Final answer
    x = 10,491.90

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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.