Home / 6,915.89-10,377.48-3,015.74

Finding the Fourth Proportional to 6,915.89, 10,377.48 and 3,015.74

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Solution

The fourth proportional to 6,915.89, 10,377.48 and 3,015.74 is: 4,525.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.89 : 10,377.48 = 3,015.74 : x
  2. Step 2: Convert to fraction form
    6,915.89/10,377.48 = 3,015.74/x
  3. Step 3: Cross multiply
    6,915.89x = 10,377.48 × 3,015.74
  4. Step 4: Simplify right side
    6,915.89x = 31,295,781.54
  5. Step 5: Solve for x
    x = 31,295,781.54/6,915.89
  6. Step 6: Final answer
    x = 4,525.20

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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.