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Finding the Fourth Proportional to 10,437, 15,655.50 and 3,511.50

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Solution

The fourth proportional to 10,437, 15,655.50 and 3,511.50 is: 5,267.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,437 : 15,655.50 = 3,511.50 : x
  2. Step 2: Convert to fraction form
    10,437/15,655.50 = 3,511.50/x
  3. Step 3: Cross multiply
    10,437x = 15,655.50 × 3,511.50
  4. Step 4: Simplify right side
    10,437x = 54,974,288.25
  5. Step 5: Solve for x
    x = 54,974,288.25/10,437
  6. Step 6: Final answer
    x = 5,267.25

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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.