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Finding the Fourth Proportional to 9,010, 13,511.56 and 4,328.67

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Solution

The fourth proportional to 9,010, 13,511.56 and 4,328.67 is: 6,491.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,010 : 13,511.56 = 4,328.67 : x
  2. Step 2: Convert to fraction form
    9,010/13,511.56 = 4,328.67/x
  3. Step 3: Cross multiply
    9,010x = 13,511.56 × 4,328.67
  4. Step 4: Simplify right side
    9,010x = 58,487,084.43
  5. Step 5: Solve for x
    x = 58,487,084.43/9,010
  6. Step 6: Final answer
    x = 6,491.35

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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.