Home / 13,530.58-18,657.01-8,744.22

Finding the Fourth Proportional to 13,530.58, 18,657.01 and 8,744.22

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Solution

The fourth proportional to 13,530.58, 18,657.01 and 8,744.22 is: 12,057.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,530.58 : 18,657.01 = 8,744.22 : x
  2. Step 2: Convert to fraction form
    13,530.58/18,657.01 = 8,744.22/x
  3. Step 3: Cross multiply
    13,530.58x = 18,657.01 × 8,744.22
  4. Step 4: Simplify right side
    13,530.58x = 163,140,999.98
  5. Step 5: Solve for x
    x = 163,140,999.98/13,530.58
  6. Step 6: Final answer
    x = 12,057.21

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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.