Home / 7,915.68-11,877.48-5,284.62

Finding the Fourth Proportional to 7,915.68, 11,877.48 and 5,284.62

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Solution

The fourth proportional to 7,915.68, 11,877.48 and 5,284.62 is: 7,929.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.68 : 11,877.48 = 5,284.62 : x
  2. Step 2: Convert to fraction form
    7,915.68/11,877.48 = 5,284.62/x
  3. Step 3: Cross multiply
    7,915.68x = 11,877.48 × 5,284.62
  4. Step 4: Simplify right side
    7,915.68x = 62,767,968.36
  5. Step 5: Solve for x
    x = 62,767,968.36/7,915.68
  6. Step 6: Final answer
    x = 7,929.57

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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.