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Finding the Fourth Proportional to 12,020.35, 18,006.04 and 9,807.07

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Solution

The fourth proportional to 12,020.35, 18,006.04 and 9,807.07 is: 14,690.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.35 : 18,006.04 = 9,807.07 : x
  2. Step 2: Convert to fraction form
    12,020.35/18,006.04 = 9,807.07/x
  3. Step 3: Cross multiply
    12,020.35x = 18,006.04 × 9,807.07
  4. Step 4: Simplify right side
    12,020.35x = 176,586,355.64
  5. Step 5: Solve for x
    x = 176,586,355.64/12,020.35
  6. Step 6: Final answer
    x = 14,690.62

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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.