Home / 13,572.45-18,729.59-7,604.47

Finding the Fourth Proportional to 13,572.45, 18,729.59 and 7,604.47

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Solution

The fourth proportional to 13,572.45, 18,729.59 and 7,604.47 is: 10,493.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.45 : 18,729.59 = 7,604.47 : x
  2. Step 2: Convert to fraction form
    13,572.45/18,729.59 = 7,604.47/x
  3. Step 3: Cross multiply
    13,572.45x = 18,729.59 × 7,604.47
  4. Step 4: Simplify right side
    13,572.45x = 142,428,605.27
  5. Step 5: Solve for x
    x = 142,428,605.27/13,572.45
  6. Step 6: Final answer
    x = 10,493.95

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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.