Home / 15,877.78-23,815.39-6,515.14

Finding the Fourth Proportional to 15,877.78, 23,815.39 and 6,515.14

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Solution

The fourth proportional to 15,877.78, 23,815.39 and 6,515.14 is: 9,772.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,877.78 : 23,815.39 = 6,515.14 : x
  2. Step 2: Convert to fraction form
    15,877.78/23,815.39 = 6,515.14/x
  3. Step 3: Cross multiply
    15,877.78x = 23,815.39 × 6,515.14
  4. Step 4: Simplify right side
    15,877.78x = 155,160,600.00
  5. Step 5: Solve for x
    x = 155,160,600.00/15,877.78
  6. Step 6: Final answer
    x = 9,772.18

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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.