Home / 19,724.60-27,219.15-10,772.09

Finding the Fourth Proportional to 19,724.60, 27,219.15 and 10,772.09

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Solution

The fourth proportional to 19,724.60, 27,219.15 and 10,772.09 is: 14,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,724.60 : 27,219.15 = 10,772.09 : x
  2. Step 2: Convert to fraction form
    19,724.60/27,219.15 = 10,772.09/x
  3. Step 3: Cross multiply
    19,724.60x = 27,219.15 × 10,772.09
  4. Step 4: Simplify right side
    19,724.60x = 293,207,133.52
  5. Step 5: Solve for x
    x = 293,207,133.52/19,724.60
  6. Step 6: Final answer
    x = 14,865.05

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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.