Home / 14,863.61-20,496.47-10,385.73

Finding the Fourth Proportional to 14,863.61, 20,496.47 and 10,385.73

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Solution

The fourth proportional to 14,863.61, 20,496.47 and 10,385.73 is: 14,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,863.61 : 20,496.47 = 10,385.73 : x
  2. Step 2: Convert to fraction form
    14,863.61/20,496.47 = 10,385.73/x
  3. Step 3: Cross multiply
    14,863.61x = 20,496.47 × 10,385.73
  4. Step 4: Simplify right side
    14,863.61x = 212,870,829.34
  5. Step 5: Solve for x
    x = 212,870,829.34/14,863.61
  6. Step 6: Final answer
    x = 14,321.61

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Double scale
Find fourth proportional to 14,864.61, 20,497.85 and 10,386.73
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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.