Home / 13,603.39-18,772.57-7,635.04

Finding the Fourth Proportional to 13,603.39, 18,772.57 and 7,635.04

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Solution

The fourth proportional to 13,603.39, 18,772.57 and 7,635.04 is: 10,536.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,603.39 : 18,772.57 = 7,635.04 : x
  2. Step 2: Convert to fraction form
    13,603.39/18,772.57 = 7,635.04/x
  3. Step 3: Cross multiply
    13,603.39x = 18,772.57 × 7,635.04
  4. Step 4: Simplify right side
    13,603.39x = 143,329,285.47
  5. Step 5: Solve for x
    x = 143,329,285.47/13,603.39
  6. Step 6: Final answer
    x = 10,536.29

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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.