Home / 15,628.63-21,545.10-11,144.61

Finding the Fourth Proportional to 15,628.63, 21,545.10 and 11,144.61

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Solution

The fourth proportional to 15,628.63, 21,545.10 and 11,144.61 is: 15,363.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.63 : 21,545.10 = 11,144.61 : x
  2. Step 2: Convert to fraction form
    15,628.63/21,545.10 = 11,144.61/x
  3. Step 3: Cross multiply
    15,628.63x = 21,545.10 × 11,144.61
  4. Step 4: Simplify right side
    15,628.63x = 240,111,736.91
  5. Step 5: Solve for x
    x = 240,111,736.91/15,628.63
  6. Step 6: Final answer
    x = 15,363.58

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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.