Home / 9,603.40-13,257.92-6,635.21

Finding the Fourth Proportional to 9,603.40, 13,257.92 and 6,635.21

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Solution

The fourth proportional to 9,603.40, 13,257.92 and 6,635.21 is: 9,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,603.40 : 13,257.92 = 6,635.21 : x
  2. Step 2: Convert to fraction form
    9,603.40/13,257.92 = 6,635.21/x
  3. Step 3: Cross multiply
    9,603.40x = 13,257.92 × 6,635.21
  4. Step 4: Simplify right side
    9,603.40x = 87,969,050.19
  5. Step 5: Solve for x
    x = 87,969,050.19/9,603.40
  6. Step 6: Final answer
    x = 9,160.20

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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.