Home / 13,603.52-18,772.82-7,635.76

Finding the Fourth Proportional to 13,603.52, 18,772.82 and 7,635.76

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Solution

The fourth proportional to 13,603.52, 18,772.82 and 7,635.76 is: 10,537.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.52 : 18,772.82 = 7,635.76 : x
  2. Step 2: Convert to fraction form
    13,603.52/18,772.82 = 7,635.76/x
  3. Step 3: Cross multiply
    13,603.52x = 18,772.82 × 7,635.76
  4. Step 4: Simplify right side
    13,603.52x = 143,344,616.00
  5. Step 5: Solve for x
    x = 143,344,616.00/13,603.52
  6. Step 6: Final answer
    x = 10,537.32

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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.