Home / 13,599.91-18,768.21-7,632.05

Finding the Fourth Proportional to 13,599.91, 18,768.21 and 7,632.05

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Solution

The fourth proportional to 13,599.91, 18,768.21 and 7,632.05 is: 10,532.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.91 : 18,768.21 = 7,632.05 : x
  2. Step 2: Convert to fraction form
    13,599.91/18,768.21 = 7,632.05/x
  3. Step 3: Cross multiply
    13,599.91x = 18,768.21 × 7,632.05
  4. Step 4: Simplify right side
    13,599.91x = 143,239,917.13
  5. Step 5: Solve for x
    x = 143,239,917.13/13,599.91
  6. Step 6: Final answer
    x = 10,532.42

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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.