Home / 9,431.91-13,012.65-6,603.80

Finding the Fourth Proportional to 9,431.91, 13,012.65 and 6,603.80

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Solution

The fourth proportional to 9,431.91, 13,012.65 and 6,603.80 is: 9,110.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,431.91 : 13,012.65 = 6,603.80 : x
  2. Step 2: Convert to fraction form
    9,431.91/13,012.65 = 6,603.80/x
  3. Step 3: Cross multiply
    9,431.91x = 13,012.65 × 6,603.80
  4. Step 4: Simplify right side
    9,431.91x = 85,932,873.01
  5. Step 5: Solve for x
    x = 85,932,873.01/9,431.91
  6. Step 6: Final answer
    x = 9,110.87

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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.