Home / 13,382.98-18,470.47-7,716.62

Finding the Fourth Proportional to 13,382.98, 18,470.47 and 7,716.62

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Solution

The fourth proportional to 13,382.98, 18,470.47 and 7,716.62 is: 10,650.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,382.98 : 18,470.47 = 7,716.62 : x
  2. Step 2: Convert to fraction form
    13,382.98/18,470.47 = 7,716.62/x
  3. Step 3: Cross multiply
    13,382.98x = 18,470.47 × 7,716.62
  4. Step 4: Simplify right side
    13,382.98x = 142,529,598.21
  5. Step 5: Solve for x
    x = 142,529,598.21/13,382.98
  6. Step 6: Final answer
    x = 10,650.06

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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.