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Finding the Fourth Proportional to 15,555, 23,332.50 and 4,611

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Solution

The fourth proportional to 15,555, 23,332.50 and 4,611 is: 6,916.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,555 : 23,332.50 = 4,611 : x
  2. Step 2: Convert to fraction form
    15,555/23,332.50 = 4,611/x
  3. Step 3: Cross multiply
    15,555x = 23,332.50 × 4,611
  4. Step 4: Simplify right side
    15,555x = 107,586,157.50
  5. Step 5: Solve for x
    x = 107,586,157.50/15,555
  6. Step 6: Final answer
    x = 6,916.50

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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.