Home / 19,818.20-29,718.66-7,497.56

Finding the Fourth Proportional to 19,818.20, 29,718.66 and 7,497.56

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Solution

The fourth proportional to 19,818.20, 29,718.66 and 7,497.56 is: 11,243.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.20 : 29,718.66 = 7,497.56 : x
  2. Step 2: Convert to fraction form
    19,818.20/29,718.66 = 7,497.56/x
  3. Step 3: Cross multiply
    19,818.20x = 29,718.66 × 7,497.56
  4. Step 4: Simplify right side
    19,818.20x = 222,817,538.88
  5. Step 5: Solve for x
    x = 222,817,538.88/19,818.20
  6. Step 6: Final answer
    x = 11,243.08

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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.