Home / 19,126.72-28,678.96-7,426.24

Finding the Fourth Proportional to 19,126.72, 28,678.96 and 7,426.24

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Solution

The fourth proportional to 19,126.72, 28,678.96 and 7,426.24 is: 11,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,126.72 : 28,678.96 = 7,426.24 : x
  2. Step 2: Convert to fraction form
    19,126.72/28,678.96 = 7,426.24/x
  3. Step 3: Cross multiply
    19,126.72x = 28,678.96 × 7,426.24
  4. Step 4: Simplify right side
    19,126.72x = 212,976,839.91
  5. Step 5: Solve for x
    x = 212,976,839.91/19,126.72
  6. Step 6: Final answer
    x = 11,135.04

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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.