Home / 13,228.59-18,263.96-8,758.35

Finding the Fourth Proportional to 13,228.59, 18,263.96 and 8,758.35

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Solution

The fourth proportional to 13,228.59, 18,263.96 and 8,758.35 is: 12,092.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.59 : 18,263.96 = 8,758.35 : x
  2. Step 2: Convert to fraction form
    13,228.59/18,263.96 = 8,758.35/x
  3. Step 3: Cross multiply
    13,228.59x = 18,263.96 × 8,758.35
  4. Step 4: Simplify right side
    13,228.59x = 159,962,110.27
  5. Step 5: Solve for x
    x = 159,962,110.27/13,228.59
  6. Step 6: Final answer
    x = 12,092.15

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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.