Home / 19,584.40-29,376.66-6,437.80

Finding the Fourth Proportional to 19,584.40, 29,376.66 and 6,437.80

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Solution

The fourth proportional to 19,584.40, 29,376.66 and 6,437.80 is: 9,656.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,584.40 : 29,376.66 = 6,437.80 : x
  2. Step 2: Convert to fraction form
    19,584.40/29,376.66 = 6,437.80/x
  3. Step 3: Cross multiply
    19,584.40x = 29,376.66 × 6,437.80
  4. Step 4: Simplify right side
    19,584.40x = 189,121,061.75
  5. Step 5: Solve for x
    x = 189,121,061.75/19,584.40
  6. Step 6: Final answer
    x = 9,656.72

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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.