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Finding the Fourth Proportional to 14,640.72, 21,929.40 and 9,095.40

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Solution

The fourth proportional to 14,640.72, 21,929.40 and 9,095.40 is: 13,623.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.72 : 21,929.40 = 9,095.40 : x
  2. Step 2: Convert to fraction form
    14,640.72/21,929.40 = 9,095.40/x
  3. Step 3: Cross multiply
    14,640.72x = 21,929.40 × 9,095.40
  4. Step 4: Simplify right side
    14,640.72x = 199,456,664.76
  5. Step 5: Solve for x
    x = 199,456,664.76/14,640.72
  6. Step 6: Final answer
    x = 13,623.42

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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.