Home / 13,549.50-18,687.83-10,354.86

Finding the Fourth Proportional to 13,549.50, 18,687.83 and 10,354.86

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Solution

The fourth proportional to 13,549.50, 18,687.83 and 10,354.86 is: 14,281.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.50 : 18,687.83 = 10,354.86 : x
  2. Step 2: Convert to fraction form
    13,549.50/18,687.83 = 10,354.86/x
  3. Step 3: Cross multiply
    13,549.50x = 18,687.83 × 10,354.86
  4. Step 4: Simplify right side
    13,549.50x = 193,509,811.58
  5. Step 5: Solve for x
    x = 193,509,811.58/13,549.50
  6. Step 6: Final answer
    x = 14,281.69

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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.