Home / 15,293.50-21,105.07-8,924.47

Finding the Fourth Proportional to 15,293.50, 21,105.07 and 8,924.47

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Solution

The fourth proportional to 15,293.50, 21,105.07 and 8,924.47 is: 12,315.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,293.50 : 21,105.07 = 8,924.47 : x
  2. Step 2: Convert to fraction form
    15,293.50/21,105.07 = 8,924.47/x
  3. Step 3: Cross multiply
    15,293.50x = 21,105.07 × 8,924.47
  4. Step 4: Simplify right side
    15,293.50x = 188,351,564.06
  5. Step 5: Solve for x
    x = 188,351,564.06/15,293.50
  6. Step 6: Final answer
    x = 12,315.79

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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.