Home / 15,715.91-23,575.35-5,181.59

Finding the Fourth Proportional to 15,715.91, 23,575.35 and 5,181.59

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Solution

The fourth proportional to 15,715.91, 23,575.35 and 5,181.59 is: 7,772.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,715.91 : 23,575.35 = 5,181.59 : x
  2. Step 2: Convert to fraction form
    15,715.91/23,575.35 = 5,181.59/x
  3. Step 3: Cross multiply
    15,715.91x = 23,575.35 × 5,181.59
  4. Step 4: Simplify right side
    15,715.91x = 122,157,797.81
  5. Step 5: Solve for x
    x = 122,157,797.81/15,715.91
  6. Step 6: Final answer
    x = 7,772.87

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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.