Home / 19,588.78-29,387.52-6,440.62

Finding the Fourth Proportional to 19,588.78, 29,387.52 and 6,440.62

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Solution

The fourth proportional to 19,588.78, 29,387.52 and 6,440.62 is: 9,662.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,588.78 : 29,387.52 = 6,440.62 : x
  2. Step 2: Convert to fraction form
    19,588.78/29,387.52 = 6,440.62/x
  3. Step 3: Cross multiply
    19,588.78x = 29,387.52 × 6,440.62
  4. Step 4: Simplify right side
    19,588.78x = 189,273,849.06
  5. Step 5: Solve for x
    x = 189,273,849.06/19,588.78
  6. Step 6: Final answer
    x = 9,662.36

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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.