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Finding the Fourth Proportional to 14,009.10, 21,000.15 and 9,063.78

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Solution

The fourth proportional to 14,009.10, 21,000.15 and 9,063.78 is: 13,586.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,009.10 : 21,000.15 = 9,063.78 : x
  2. Step 2: Convert to fraction form
    14,009.10/21,000.15 = 9,063.78/x
  3. Step 3: Cross multiply
    14,009.10x = 21,000.15 × 9,063.78
  4. Step 4: Simplify right side
    14,009.10x = 190,340,739.57
  5. Step 5: Solve for x
    x = 190,340,739.57/14,009.10
  6. Step 6: Final answer
    x = 13,586.94

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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.