Home / 18,929.82-26,122.56-10,864.80

Finding the Fourth Proportional to 18,929.82, 26,122.56 and 10,864.80

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Solution

The fourth proportional to 18,929.82, 26,122.56 and 10,864.80 is: 14,993.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.82 : 26,122.56 = 10,864.80 : x
  2. Step 2: Convert to fraction form
    18,929.82/26,122.56 = 10,864.80/x
  3. Step 3: Cross multiply
    18,929.82x = 26,122.56 × 10,864.80
  4. Step 4: Simplify right side
    18,929.82x = 283,816,389.89
  5. Step 5: Solve for x
    x = 283,816,389.89/18,929.82
  6. Step 6: Final answer
    x = 14,993.08

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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.