Home / 19,120.32-28,696.91-7,441.74

Finding the Fourth Proportional to 19,120.32, 28,696.91 and 7,441.74

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Solution

The fourth proportional to 19,120.32, 28,696.91 and 7,441.74 is: 11,169.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,120.32 : 28,696.91 = 7,441.74 : x
  2. Step 2: Convert to fraction form
    19,120.32/28,696.91 = 7,441.74/x
  3. Step 3: Cross multiply
    19,120.32x = 28,696.91 × 7,441.74
  4. Step 4: Simplify right side
    19,120.32x = 213,554,905.81
  5. Step 5: Solve for x
    x = 213,554,905.81/19,120.32
  6. Step 6: Final answer
    x = 11,169.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.