Home / 19,665.12-29,504.16-7,188.96

Finding the Fourth Proportional to 19,665.12, 29,504.16 and 7,188.96

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Solution

The fourth proportional to 19,665.12, 29,504.16 and 7,188.96 is: 10,785.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,665.12 : 29,504.16 = 7,188.96 : x
  2. Step 2: Convert to fraction form
    19,665.12/29,504.16 = 7,188.96/x
  3. Step 3: Cross multiply
    19,665.12x = 29,504.16 × 7,188.96
  4. Step 4: Simplify right side
    19,665.12x = 212,104,226.07
  5. Step 5: Solve for x
    x = 212,104,226.07/19,665.12
  6. Step 6: Final answer
    x = 10,785.81

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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.