Home / 10,108.64-15,157.80-7,586.78

Finding the Fourth Proportional to 10,108.64, 15,157.80 and 7,586.78

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Solution

The fourth proportional to 10,108.64, 15,157.80 and 7,586.78 is: 11,376.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,108.64 : 15,157.80 = 7,586.78 : x
  2. Step 2: Convert to fraction form
    10,108.64/15,157.80 = 7,586.78/x
  3. Step 3: Cross multiply
    10,108.64x = 15,157.80 × 7,586.78
  4. Step 4: Simplify right side
    10,108.64x = 114,998,893.88
  5. Step 5: Solve for x
    x = 114,998,893.88/10,108.64
  6. Step 6: Final answer
    x = 11,376.30

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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.