Home / 9,899.59-13,661.06-5,423.37

Finding the Fourth Proportional to 9,899.59, 13,661.06 and 5,423.37

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Solution

The fourth proportional to 9,899.59, 13,661.06 and 5,423.37 is: 7,484.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.59 : 13,661.06 = 5,423.37 : x
  2. Step 2: Convert to fraction form
    9,899.59/13,661.06 = 5,423.37/x
  3. Step 3: Cross multiply
    9,899.59x = 13,661.06 × 5,423.37
  4. Step 4: Simplify right side
    9,899.59x = 74,088,982.97
  5. Step 5: Solve for x
    x = 74,088,982.97/9,899.59
  6. Step 6: Final answer
    x = 7,484.05

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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.