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Finding the Fourth Proportional to 15,605.67, 23,415.30 and 8,208.30

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Solution

The fourth proportional to 15,605.67, 23,415.30 and 8,208.30 is: 12,316.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,605.67 : 23,415.30 = 8,208.30 : x
  2. Step 2: Convert to fraction form
    15,605.67/23,415.30 = 8,208.30/x
  3. Step 3: Cross multiply
    15,605.67x = 23,415.30 × 8,208.30
  4. Step 4: Simplify right side
    15,605.67x = 192,199,806.99
  5. Step 5: Solve for x
    x = 192,199,806.99/15,605.67
  6. Step 6: Final answer
    x = 12,316.02

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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.