Home / 19,764.34-29,646.56-7,278.96

Finding the Fourth Proportional to 19,764.34, 29,646.56 and 7,278.96

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Solution

The fourth proportional to 19,764.34, 29,646.56 and 7,278.96 is: 10,918.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,764.34 : 29,646.56 = 7,278.96 : x
  2. Step 2: Convert to fraction form
    19,764.34/29,646.56 = 7,278.96/x
  3. Step 3: Cross multiply
    19,764.34x = 29,646.56 × 7,278.96
  4. Step 4: Simplify right side
    19,764.34x = 215,796,124.38
  5. Step 5: Solve for x
    x = 215,796,124.38/19,764.34
  6. Step 6: Final answer
    x = 10,918.46

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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.