Home / 13,483.12-18,601.32-8,765.68

Finding the Fourth Proportional to 13,483.12, 18,601.32 and 8,765.68

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Solution

The fourth proportional to 13,483.12, 18,601.32 and 8,765.68 is: 12,093.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,483.12 : 18,601.32 = 8,765.68 : x
  2. Step 2: Convert to fraction form
    13,483.12/18,601.32 = 8,765.68/x
  3. Step 3: Cross multiply
    13,483.12x = 18,601.32 × 8,765.68
  4. Step 4: Simplify right side
    13,483.12x = 163,053,218.70
  5. Step 5: Solve for x
    x = 163,053,218.70/13,483.12
  6. Step 6: Final answer
    x = 12,093.14

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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.