Home / 18,681.16-27,994.14-10,351.08

Finding the Fourth Proportional to 18,681.16, 27,994.14 and 10,351.08

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Solution

The fourth proportional to 18,681.16, 27,994.14 and 10,351.08 is: 15,511.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681.16 : 27,994.14 = 10,351.08 : x
  2. Step 2: Convert to fraction form
    18,681.16/27,994.14 = 10,351.08/x
  3. Step 3: Cross multiply
    18,681.16x = 27,994.14 × 10,351.08
  4. Step 4: Simplify right side
    18,681.16x = 289,769,582.67
  5. Step 5: Solve for x
    x = 289,769,582.67/18,681.16
  6. Step 6: Final answer
    x = 15,511.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.