Home / 13,572.97-18,729.43-7,603.37

Finding the Fourth Proportional to 13,572.97, 18,729.43 and 7,603.37

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Solution

The fourth proportional to 13,572.97, 18,729.43 and 7,603.37 is: 10,491.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.97 : 18,729.43 = 7,603.37 : x
  2. Step 2: Convert to fraction form
    13,572.97/18,729.43 = 7,603.37/x
  3. Step 3: Cross multiply
    13,572.97x = 18,729.43 × 7,603.37
  4. Step 4: Simplify right side
    13,572.97x = 142,406,743.76
  5. Step 5: Solve for x
    x = 142,406,743.76/13,572.97
  6. Step 6: Final answer
    x = 10,491.94

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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.