Home / 19,686.04-29,540.90-7,837.76

Finding the Fourth Proportional to 19,686.04, 29,540.90 and 7,837.76

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Solution

The fourth proportional to 19,686.04, 29,540.90 and 7,837.76 is: 11,761.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686.04 : 29,540.90 = 7,837.76 : x
  2. Step 2: Convert to fraction form
    19,686.04/29,540.90 = 7,837.76/x
  3. Step 3: Cross multiply
    19,686.04x = 29,540.90 × 7,837.76
  4. Step 4: Simplify right side
    19,686.04x = 231,534,577.83
  5. Step 5: Solve for x
    x = 231,534,577.83/19,686.04
  6. Step 6: Final answer
    x = 11,761.36

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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.