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Finding the Fourth Proportional to 15,765.74, 23,647.75 and 5,904.29

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Solution

The fourth proportional to 15,765.74, 23,647.75 and 5,904.29 is: 8,856.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.74 : 23,647.75 = 5,904.29 : x
  2. Step 2: Convert to fraction form
    15,765.74/23,647.75 = 5,904.29/x
  3. Step 3: Cross multiply
    15,765.74x = 23,647.75 × 5,904.29
  4. Step 4: Simplify right side
    15,765.74x = 139,623,218.21
  5. Step 5: Solve for x
    x = 139,623,218.21/15,765.74
  6. Step 6: Final answer
    x = 8,856.12

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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.