Home / 19,373.94-29,035.38-7,680.78

Finding the Fourth Proportional to 19,373.94, 29,035.38 and 7,680.78

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Solution

The fourth proportional to 19,373.94, 29,035.38 and 7,680.78 is: 11,511.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,373.94 : 29,035.38 = 7,680.78 : x
  2. Step 2: Convert to fraction form
    19,373.94/29,035.38 = 7,680.78/x
  3. Step 3: Cross multiply
    19,373.94x = 29,035.38 × 7,680.78
  4. Step 4: Simplify right side
    19,373.94x = 223,014,366.00
  5. Step 5: Solve for x
    x = 223,014,366.00/19,373.94
  6. Step 6: Final answer
    x = 11,511.05

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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.