Home / 19,219.28-26,522.68-10,721.90

Finding the Fourth Proportional to 19,219.28, 26,522.68 and 10,721.90

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Solution

The fourth proportional to 19,219.28, 26,522.68 and 10,721.90 is: 14,796.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,219.28 : 26,522.68 = 10,721.90 : x
  2. Step 2: Convert to fraction form
    19,219.28/26,522.68 = 10,721.90/x
  3. Step 3: Cross multiply
    19,219.28x = 26,522.68 × 10,721.90
  4. Step 4: Simplify right side
    19,219.28x = 284,373,522.69
  5. Step 5: Solve for x
    x = 284,373,522.69/19,219.28
  6. Step 6: Final answer
    x = 14,796.26

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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.