Home / 9,899.77-13,661.68-5,423.51

Finding the Fourth Proportional to 9,899.77, 13,661.68 and 5,423.51

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Solution

The fourth proportional to 9,899.77, 13,661.68 and 5,423.51 is: 7,484.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.77 : 13,661.68 = 5,423.51 : x
  2. Step 2: Convert to fraction form
    9,899.77/13,661.68 = 5,423.51/x
  3. Step 3: Cross multiply
    9,899.77x = 13,661.68 × 5,423.51
  4. Step 4: Simplify right side
    9,899.77x = 74,094,230.98
  5. Step 5: Solve for x
    x = 74,094,230.98/9,899.77
  6. Step 6: Final answer
    x = 7,484.44

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Similar ratio
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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.