Home / 13,406.54-20,083.65-8,775.50

Finding the Fourth Proportional to 13,406.54, 20,083.65 and 8,775.50

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Solution

The fourth proportional to 13,406.54, 20,083.65 and 8,775.50 is: 13,146.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,406.54 : 20,083.65 = 8,775.50 : x
  2. Step 2: Convert to fraction form
    13,406.54/20,083.65 = 8,775.50/x
  3. Step 3: Cross multiply
    13,406.54x = 20,083.65 × 8,775.50
  4. Step 4: Simplify right side
    13,406.54x = 176,244,070.58
  5. Step 5: Solve for x
    x = 176,244,070.58/13,406.54
  6. Step 6: Final answer
    x = 13,146.13

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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.