Home / 7,948.72-11,915.28-4,440.41

Finding the Fourth Proportional to 7,948.72, 11,915.28 and 4,440.41

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Solution

The fourth proportional to 7,948.72, 11,915.28 and 4,440.41 is: 6,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,948.72 : 11,915.28 = 4,440.41 : x
  2. Step 2: Convert to fraction form
    7,948.72/11,915.28 = 4,440.41/x
  3. Step 3: Cross multiply
    7,948.72x = 11,915.28 × 4,440.41
  4. Step 4: Simplify right side
    7,948.72x = 52,908,684.33
  5. Step 5: Solve for x
    x = 52,908,684.33/7,948.72
  6. Step 6: Final answer
    x = 6,656.25

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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.