Home / 15,812.07-21,819.79-8,738.03

Finding the Fourth Proportional to 15,812.07, 21,819.79 and 8,738.03

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Solution

The fourth proportional to 15,812.07, 21,819.79 and 8,738.03 is: 12,058.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.07 : 21,819.79 = 8,738.03 : x
  2. Step 2: Convert to fraction form
    15,812.07/21,819.79 = 8,738.03/x
  3. Step 3: Cross multiply
    15,812.07x = 21,819.79 × 8,738.03
  4. Step 4: Simplify right side
    15,812.07x = 190,661,979.61
  5. Step 5: Solve for x
    x = 190,661,979.61/15,812.07
  6. Step 6: Final answer
    x = 12,058.00

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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.