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Finding the Fourth Proportional to 10,828.40, 14,950.14 and 8,843.72

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Solution

The fourth proportional to 10,828.40, 14,950.14 and 8,843.72 is: 12,210.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,828.40 : 14,950.14 = 8,843.72 : x
  2. Step 2: Convert to fraction form
    10,828.40/14,950.14 = 8,843.72/x
  3. Step 3: Cross multiply
    10,828.40x = 14,950.14 × 8,843.72
  4. Step 4: Simplify right side
    10,828.40x = 132,214,852.12
  5. Step 5: Solve for x
    x = 132,214,852.12/10,828.40
  6. Step 6: Final answer
    x = 12,210.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.