Home / 9,899.08-13,660.82-5,423.25

Finding the Fourth Proportional to 9,899.08, 13,660.82 and 5,423.25

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Solution

The fourth proportional to 9,899.08, 13,660.82 and 5,423.25 is: 7,484.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.08 : 13,660.82 = 5,423.25 : x
  2. Step 2: Convert to fraction form
    9,899.08/13,660.82 = 5,423.25/x
  3. Step 3: Cross multiply
    9,899.08x = 13,660.82 × 5,423.25
  4. Step 4: Simplify right side
    9,899.08x = 74,086,042.07
  5. Step 5: Solve for x
    x = 74,086,042.07/9,899.08
  6. Step 6: Final answer
    x = 7,484.13

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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.