Home / 18,167.81-27,247.86-10,666.40

Finding the Fourth Proportional to 18,167.81, 27,247.86 and 10,666.40

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Solution

The fourth proportional to 18,167.81, 27,247.86 and 10,666.40 is: 15,997.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,167.81 : 27,247.86 = 10,666.40 : x
  2. Step 2: Convert to fraction form
    18,167.81/27,247.86 = 10,666.40/x
  3. Step 3: Cross multiply
    18,167.81x = 27,247.86 × 10,666.40
  4. Step 4: Simplify right side
    18,167.81x = 290,636,437.66
  5. Step 5: Solve for x
    x = 290,636,437.66/18,167.81
  6. Step 6: Final answer
    x = 15,997.33

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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.