Home / 19,710.78-29,565.10-6,383.51

Finding the Fourth Proportional to 19,710.78, 29,565.10 and 6,383.51

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Solution

The fourth proportional to 19,710.78, 29,565.10 and 6,383.51 is: 9,574.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,710.78 : 29,565.10 = 6,383.51 : x
  2. Step 2: Convert to fraction form
    19,710.78/29,565.10 = 6,383.51/x
  3. Step 3: Cross multiply
    19,710.78x = 29,565.10 × 6,383.51
  4. Step 4: Simplify right side
    19,710.78x = 188,729,082.52
  5. Step 5: Solve for x
    x = 188,729,082.52/19,710.78
  6. Step 6: Final answer
    x = 9,574.92

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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.