Home / 14,057.61-19,400.73-7,771.20

Finding the Fourth Proportional to 14,057.61, 19,400.73 and 7,771.20

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Solution

The fourth proportional to 14,057.61, 19,400.73 and 7,771.20 is: 10,724.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,057.61 : 19,400.73 = 7,771.20 : x
  2. Step 2: Convert to fraction form
    14,057.61/19,400.73 = 7,771.20/x
  3. Step 3: Cross multiply
    14,057.61x = 19,400.73 × 7,771.20
  4. Step 4: Simplify right side
    14,057.61x = 150,766,952.98
  5. Step 5: Solve for x
    x = 150,766,952.98/14,057.61
  6. Step 6: Final answer
    x = 10,724.93

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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.