Home / 13,624.05-18,800.59-7,959.32

Finding the Fourth Proportional to 13,624.05, 18,800.59 and 7,959.32

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Solution

The fourth proportional to 13,624.05, 18,800.59 and 7,959.32 is: 10,983.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,624.05 : 18,800.59 = 7,959.32 : x
  2. Step 2: Convert to fraction form
    13,624.05/18,800.59 = 7,959.32/x
  3. Step 3: Cross multiply
    13,624.05x = 18,800.59 × 7,959.32
  4. Step 4: Simplify right side
    13,624.05x = 149,639,912.00
  5. Step 5: Solve for x
    x = 149,639,912.00/13,624.05
  6. Step 6: Final answer
    x = 10,983.51

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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.