Home / 9,719.78-14,581.38-6,435.56

Finding the Fourth Proportional to 9,719.78, 14,581.38 and 6,435.56

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Solution

The fourth proportional to 9,719.78, 14,581.38 and 6,435.56 is: 9,654.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,719.78 : 14,581.38 = 6,435.56 : x
  2. Step 2: Convert to fraction form
    9,719.78/14,581.38 = 6,435.56/x
  3. Step 3: Cross multiply
    9,719.78x = 14,581.38 × 6,435.56
  4. Step 4: Simplify right side
    9,719.78x = 93,839,345.87
  5. Step 5: Solve for x
    x = 93,839,345.87/9,719.78
  6. Step 6: Final answer
    x = 9,654.47

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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.