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Finding the Fourth Proportional to 14,280.16, 21,424.97 and 9,009.09

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Solution

The fourth proportional to 14,280.16, 21,424.97 and 9,009.09 is: 13,516.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,280.16 : 21,424.97 = 9,009.09 : x
  2. Step 2: Convert to fraction form
    14,280.16/21,424.97 = 9,009.09/x
  3. Step 3: Cross multiply
    14,280.16x = 21,424.97 × 9,009.09
  4. Step 4: Simplify right side
    14,280.16x = 193,019,330.81
  5. Step 5: Solve for x
    x = 193,019,330.81/14,280.16
  6. Step 6: Final answer
    x = 13,516.61

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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.