Home / 17,918.49-26,882.28-12,663.84

Finding the Fourth Proportional to 17,918.49, 26,882.28 and 12,663.84

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Solution

The fourth proportional to 17,918.49, 26,882.28 and 12,663.84 is: 18,998.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,918.49 : 26,882.28 = 12,663.84 : x
  2. Step 2: Convert to fraction form
    17,918.49/26,882.28 = 12,663.84/x
  3. Step 3: Cross multiply
    17,918.49x = 26,882.28 × 12,663.84
  4. Step 4: Simplify right side
    17,918.49x = 340,432,892.76
  5. Step 5: Solve for x
    x = 340,432,892.76/17,918.49
  6. Step 6: Final answer
    x = 18,998.97

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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.