Home / 19,881.62-27,436.56-10,807.07

Finding the Fourth Proportional to 19,881.62, 27,436.56 and 10,807.07

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Solution

The fourth proportional to 19,881.62, 27,436.56 and 10,807.07 is: 14,913.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,881.62 : 27,436.56 = 10,807.07 : x
  2. Step 2: Convert to fraction form
    19,881.62/27,436.56 = 10,807.07/x
  3. Step 3: Cross multiply
    19,881.62x = 27,436.56 × 10,807.07
  4. Step 4: Simplify right side
    19,881.62x = 296,508,752.00
  5. Step 5: Solve for x
    x = 296,508,752.00/19,881.62
  6. Step 6: Final answer
    x = 14,913.71

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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.