Home / 8,915.24-13,368.34-5,218.58

Finding the Fourth Proportional to 8,915.24, 13,368.34 and 5,218.58

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Solution

The fourth proportional to 8,915.24, 13,368.34 and 5,218.58 is: 7,825.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.24 : 13,368.34 = 5,218.58 : x
  2. Step 2: Convert to fraction form
    8,915.24/13,368.34 = 5,218.58/x
  3. Step 3: Cross multiply
    8,915.24x = 13,368.34 × 5,218.58
  4. Step 4: Simplify right side
    8,915.24x = 69,763,751.76
  5. Step 5: Solve for x
    x = 69,763,751.76/8,915.24
  6. Step 6: Final answer
    x = 7,825.22

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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.