Home / 9,863.36-13,611.33-5,387.10

Finding the Fourth Proportional to 9,863.36, 13,611.33 and 5,387.10

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Solution

The fourth proportional to 9,863.36, 13,611.33 and 5,387.10 is: 7,434.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,863.36 : 13,611.33 = 5,387.10 : x
  2. Step 2: Convert to fraction form
    9,863.36/13,611.33 = 5,387.10/x
  3. Step 3: Cross multiply
    9,863.36x = 13,611.33 × 5,387.10
  4. Step 4: Simplify right side
    9,863.36x = 73,325,595.84
  5. Step 5: Solve for x
    x = 73,325,595.84/9,863.36
  6. Step 6: Final answer
    x = 7,434.14

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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.