Home / 13,619.92-18,799.36-7,955.98

Finding the Fourth Proportional to 13,619.92, 18,799.36 and 7,955.98

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Solution

The fourth proportional to 13,619.92, 18,799.36 and 7,955.98 is: 10,981.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,619.92 : 18,799.36 = 7,955.98 : x
  2. Step 2: Convert to fraction form
    13,619.92/18,799.36 = 7,955.98/x
  3. Step 3: Cross multiply
    13,619.92x = 18,799.36 × 7,955.98
  4. Step 4: Simplify right side
    13,619.92x = 149,567,332.17
  5. Step 5: Solve for x
    x = 149,567,332.17/13,619.92
  6. Step 6: Final answer
    x = 10,981.51

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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.