Home / 6,915.07-10,372.58-5,521.87

Finding the Fourth Proportional to 6,915.07, 10,372.58 and 5,521.87

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Solution

The fourth proportional to 6,915.07, 10,372.58 and 5,521.87 is: 8,282.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.07 : 10,372.58 = 5,521.87 : x
  2. Step 2: Convert to fraction form
    6,915.07/10,372.58 = 5,521.87/x
  3. Step 3: Cross multiply
    6,915.07x = 10,372.58 × 5,521.87
  4. Step 4: Simplify right side
    6,915.07x = 57,276,038.32
  5. Step 5: Solve for x
    x = 57,276,038.32/6,915.07
  6. Step 6: Final answer
    x = 8,282.79

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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.