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Finding the Fourth Proportional to 9,009.88, 13,511.37 and 4,328.55

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Solution

The fourth proportional to 9,009.88, 13,511.37 and 4,328.55 is: 6,491.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.88 : 13,511.37 = 4,328.55 : x
  2. Step 2: Convert to fraction form
    9,009.88/13,511.37 = 4,328.55/x
  3. Step 3: Cross multiply
    9,009.88x = 13,511.37 × 4,328.55
  4. Step 4: Simplify right side
    9,009.88x = 58,484,640.61
  5. Step 5: Solve for x
    x = 58,484,640.61/9,009.88
  6. Step 6: Final answer
    x = 6,491.17

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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.