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Finding the Fourth Proportional to 15,765.60, 23,650.06 and 6,404.21

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Solution

The fourth proportional to 15,765.60, 23,650.06 and 6,404.21 is: 9,606.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.60 : 23,650.06 = 6,404.21 : x
  2. Step 2: Convert to fraction form
    15,765.60/23,650.06 = 6,404.21/x
  3. Step 3: Cross multiply
    15,765.60x = 23,650.06 × 6,404.21
  4. Step 4: Simplify right side
    15,765.60x = 151,459,950.75
  5. Step 5: Solve for x
    x = 151,459,950.75/15,765.60
  6. Step 6: Final answer
    x = 9,606.99

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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.