Home / 9,899.53-13,661.35-5,423.29

Finding the Fourth Proportional to 9,899.53, 13,661.35 and 5,423.29

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Solution

The fourth proportional to 9,899.53, 13,661.35 and 5,423.29 is: 7,484.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,899.53 : 13,661.35 = 5,423.29 : x
  2. Step 2: Convert to fraction form
    9,899.53/13,661.35 = 5,423.29/x
  3. Step 3: Cross multiply
    9,899.53x = 13,661.35 × 5,423.29
  4. Step 4: Simplify right side
    9,899.53x = 74,089,415.13
  5. Step 5: Solve for x
    x = 74,089,415.13/9,899.53
  6. Step 6: Final answer
    x = 7,484.14

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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.