Home / 9,899.38-13,661.16-5,423.14

Finding the Fourth Proportional to 9,899.38, 13,661.16 and 5,423.14

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Solution

The fourth proportional to 9,899.38, 13,661.16 and 5,423.14 is: 7,483.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.38 : 13,661.16 = 5,423.14 : x
  2. Step 2: Convert to fraction form
    9,899.38/13,661.16 = 5,423.14/x
  3. Step 3: Cross multiply
    9,899.38x = 13,661.16 × 5,423.14
  4. Step 4: Simplify right side
    9,899.38x = 74,086,383.24
  5. Step 5: Solve for x
    x = 74,086,383.24/9,899.38
  6. Step 6: Final answer
    x = 7,483.94

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Double scale
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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.