Home / 9,855.36-13,600.35-5,379.03

Finding the Fourth Proportional to 9,855.36, 13,600.35 and 5,379.03

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Solution

The fourth proportional to 9,855.36, 13,600.35 and 5,379.03 is: 7,423.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,855.36 : 13,600.35 = 5,379.03 : x
  2. Step 2: Convert to fraction form
    9,855.36/13,600.35 = 5,379.03/x
  3. Step 3: Cross multiply
    9,855.36x = 13,600.35 × 5,379.03
  4. Step 4: Simplify right side
    9,855.36x = 73,156,690.66
  5. Step 5: Solve for x
    x = 73,156,690.66/9,855.36
  6. Step 6: Final answer
    x = 7,423.04

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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.