Home / 13,571.03-18,727.88-7,602.71

Finding the Fourth Proportional to 13,571.03, 18,727.88 and 7,602.71

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Solution

The fourth proportional to 13,571.03, 18,727.88 and 7,602.71 is: 10,491.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571.03 : 18,727.88 = 7,602.71 : x
  2. Step 2: Convert to fraction form
    13,571.03/18,727.88 = 7,602.71/x
  3. Step 3: Cross multiply
    13,571.03x = 18,727.88 × 7,602.71
  4. Step 4: Simplify right side
    13,571.03x = 142,382,508.90
  5. Step 5: Solve for x
    x = 142,382,508.90/13,571.03
  6. Step 6: Final answer
    x = 10,491.65

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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.