Home / 19,665.61-27,138.62-10,713.03

Finding the Fourth Proportional to 19,665.61, 27,138.62 and 10,713.03

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Solution

The fourth proportional to 19,665.61, 27,138.62 and 10,713.03 is: 14,784.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.61 : 27,138.62 = 10,713.03 : x
  2. Step 2: Convert to fraction form
    19,665.61/27,138.62 = 10,713.03/x
  3. Step 3: Cross multiply
    19,665.61x = 27,138.62 × 10,713.03
  4. Step 4: Simplify right side
    19,665.61x = 290,736,974.08
  5. Step 5: Solve for x
    x = 290,736,974.08/19,665.61
  6. Step 6: Final answer
    x = 14,784.03

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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.