Home / 13,687.97-20,530.18-4,328.93

Finding the Fourth Proportional to 13,687.97, 20,530.18 and 4,328.93

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Solution

The fourth proportional to 13,687.97, 20,530.18 and 4,328.93 is: 6,492.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,687.97 : 20,530.18 = 4,328.93 : x
  2. Step 2: Convert to fraction form
    13,687.97/20,530.18 = 4,328.93/x
  3. Step 3: Cross multiply
    13,687.97x = 20,530.18 × 4,328.93
  4. Step 4: Simplify right side
    13,687.97x = 88,873,712.11
  5. Step 5: Solve for x
    x = 88,873,712.11/13,687.97
  6. Step 6: Final answer
    x = 6,492.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.