Home / 13,611.59-18,775.85-8,567.06

Finding the Fourth Proportional to 13,611.59, 18,775.85 and 8,567.06

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Solution

The fourth proportional to 13,611.59, 18,775.85 and 8,567.06 is: 11,817.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,611.59 : 18,775.85 = 8,567.06 : x
  2. Step 2: Convert to fraction form
    13,611.59/18,775.85 = 8,567.06/x
  3. Step 3: Cross multiply
    13,611.59x = 18,775.85 × 8,567.06
  4. Step 4: Simplify right side
    13,611.59x = 160,853,744.98
  5. Step 5: Solve for x
    x = 160,853,744.98/13,611.59
  6. Step 6: Final answer
    x = 11,817.41

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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.