Home / 13,497.40-20,246.10-12,287.80

Finding the Fourth Proportional to 13,497.40, 20,246.10 and 12,287.80

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Solution

The fourth proportional to 13,497.40, 20,246.10 and 12,287.80 is: 18,431.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,497.40 : 20,246.10 = 12,287.80 : x
  2. Step 2: Convert to fraction form
    13,497.40/20,246.10 = 12,287.80/x
  3. Step 3: Cross multiply
    13,497.40x = 20,246.10 × 12,287.80
  4. Step 4: Simplify right side
    13,497.40x = 248,780,027.58
  5. Step 5: Solve for x
    x = 248,780,027.58/13,497.40
  6. Step 6: Final answer
    x = 18,431.70

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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.