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Finding the Fourth Proportional to 13,522.61, 18,655.38 and 8,483.40

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Solution

The fourth proportional to 13,522.61, 18,655.38 and 8,483.40 is: 11,703.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.61 : 18,655.38 = 8,483.40 : x
  2. Step 2: Convert to fraction form
    13,522.61/18,655.38 = 8,483.40/x
  3. Step 3: Cross multiply
    13,522.61x = 18,655.38 × 8,483.40
  4. Step 4: Simplify right side
    13,522.61x = 158,261,050.69
  5. Step 5: Solve for x
    x = 158,261,050.69/13,522.61
  6. Step 6: Final answer
    x = 11,703.44

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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.