Home / 9,431.32-13,017.72-6,239.20

Finding the Fourth Proportional to 9,431.32, 13,017.72 and 6,239.20

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Solution

The fourth proportional to 9,431.32, 13,017.72 and 6,239.20 is: 8,611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.32 : 13,017.72 = 6,239.20 : x
  2. Step 2: Convert to fraction form
    9,431.32/13,017.72 = 6,239.20/x
  3. Step 3: Cross multiply
    9,431.32x = 13,017.72 × 6,239.20
  4. Step 4: Simplify right side
    9,431.32x = 81,220,158.62
  5. Step 5: Solve for x
    x = 81,220,158.62/9,431.32
  6. Step 6: Final answer
    x = 8,611.75

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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.