Home / 13,647.15-18,833.58-8,271.32

Finding the Fourth Proportional to 13,647.15, 18,833.58 and 8,271.32

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Solution

The fourth proportional to 13,647.15, 18,833.58 and 8,271.32 is: 11,414.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.15 : 18,833.58 = 8,271.32 : x
  2. Step 2: Convert to fraction form
    13,647.15/18,833.58 = 8,271.32/x
  3. Step 3: Cross multiply
    13,647.15x = 18,833.58 × 8,271.32
  4. Step 4: Simplify right side
    13,647.15x = 155,778,472.76
  5. Step 5: Solve for x
    x = 155,778,472.76/13,647.15
  6. Step 6: Final answer
    x = 11,414.73

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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.