Home / 10,915.62-15,056.98-6,664.74

Finding the Fourth Proportional to 10,915.62, 15,056.98 and 6,664.74

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Solution

The fourth proportional to 10,915.62, 15,056.98 and 6,664.74 is: 9,193.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.62 : 15,056.98 = 6,664.74 : x
  2. Step 2: Convert to fraction form
    10,915.62/15,056.98 = 6,664.74/x
  3. Step 3: Cross multiply
    10,915.62x = 15,056.98 × 6,664.74
  4. Step 4: Simplify right side
    10,915.62x = 100,350,856.89
  5. Step 5: Solve for x
    x = 100,350,856.89/10,915.62
  6. Step 6: Final answer
    x = 9,193.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.