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Finding the Fourth Proportional to 9,871.54, 14,806.23 and 2,945.50

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Solution

The fourth proportional to 9,871.54, 14,806.23 and 2,945.50 is: 4,417.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,871.54 : 14,806.23 = 2,945.50 : x
  2. Step 2: Convert to fraction form
    9,871.54/14,806.23 = 2,945.50/x
  3. Step 3: Cross multiply
    9,871.54x = 14,806.23 × 2,945.50
  4. Step 4: Simplify right side
    9,871.54x = 43,611,750.47
  5. Step 5: Solve for x
    x = 43,611,750.47/9,871.54
  6. Step 6: Final answer
    x = 4,417.93

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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.