Home / 19,776.28-29,663.65-7,290.90

Finding the Fourth Proportional to 19,776.28, 29,663.65 and 7,290.90

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Solution

The fourth proportional to 19,776.28, 29,663.65 and 7,290.90 is: 10,936.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,776.28 : 29,663.65 = 7,290.90 : x
  2. Step 2: Convert to fraction form
    19,776.28/29,663.65 = 7,290.90/x
  3. Step 3: Cross multiply
    19,776.28x = 29,663.65 × 7,290.90
  4. Step 4: Simplify right side
    19,776.28x = 216,274,687.56
  5. Step 5: Solve for x
    x = 216,274,687.56/19,776.28
  6. Step 6: Final answer
    x = 10,936.07

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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.