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Finding the Fourth Proportional to 13,432.98, 18,525.11 and 8,395.59

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Solution

The fourth proportional to 13,432.98, 18,525.11 and 8,395.59 is: 11,578.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.98 : 18,525.11 = 8,395.59 : x
  2. Step 2: Convert to fraction form
    13,432.98/18,525.11 = 8,395.59/x
  3. Step 3: Cross multiply
    13,432.98x = 18,525.11 × 8,395.59
  4. Step 4: Simplify right side
    13,432.98x = 155,529,228.26
  5. Step 5: Solve for x
    x = 155,529,228.26/13,432.98
  6. Step 6: Final answer
    x = 11,578.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.