Home / 9,837.79-13,579.01-6,435.28

Finding the Fourth Proportional to 9,837.79, 13,579.01 and 6,435.28

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Solution

The fourth proportional to 9,837.79, 13,579.01 and 6,435.28 is: 8,882.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,837.79 : 13,579.01 = 6,435.28 : x
  2. Step 2: Convert to fraction form
    9,837.79/13,579.01 = 6,435.28/x
  3. Step 3: Cross multiply
    9,837.79x = 13,579.01 × 6,435.28
  4. Step 4: Simplify right side
    9,837.79x = 87,384,740.40
  5. Step 5: Solve for x
    x = 87,384,740.40/9,837.79
  6. Step 6: Final answer
    x = 8,882.56

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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.