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Finding the Fourth Proportional to 15,858.79, 23,788.41 and 7,539.66

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Solution

The fourth proportional to 15,858.79, 23,788.41 and 7,539.66 is: 11,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,858.79 : 23,788.41 = 7,539.66 : x
  2. Step 2: Convert to fraction form
    15,858.79/23,788.41 = 7,539.66/x
  3. Step 3: Cross multiply
    15,858.79x = 23,788.41 × 7,539.66
  4. Step 4: Simplify right side
    15,858.79x = 179,356,523.34
  5. Step 5: Solve for x
    x = 179,356,523.34/15,858.79
  6. Step 6: Final answer
    x = 11,309.60

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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.