Home / 9,899.08-13,660.75-5,422.92

Finding the Fourth Proportional to 9,899.08, 13,660.75 and 5,422.92

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Solution

The fourth proportional to 9,899.08, 13,660.75 and 5,422.92 is: 7,483.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.08 : 13,660.75 = 5,422.92 : x
  2. Step 2: Convert to fraction form
    9,899.08/13,660.75 = 5,422.92/x
  3. Step 3: Cross multiply
    9,899.08x = 13,660.75 × 5,422.92
  4. Step 4: Simplify right side
    9,899.08x = 74,081,109.94
  5. Step 5: Solve for x
    x = 74,081,109.94/9,899.08
  6. Step 6: Final answer
    x = 7,483.64

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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.