Home / 13,403.61-18,500.85-8,098.83

Finding the Fourth Proportional to 13,403.61, 18,500.85 and 8,098.83

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Solution

The fourth proportional to 13,403.61, 18,500.85 and 8,098.83 is: 11,178.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.61 : 18,500.85 = 8,098.83 : x
  2. Step 2: Convert to fraction form
    13,403.61/18,500.85 = 8,098.83/x
  3. Step 3: Cross multiply
    13,403.61x = 18,500.85 × 8,098.83
  4. Step 4: Simplify right side
    13,403.61x = 149,835,239.01
  5. Step 5: Solve for x
    x = 149,835,239.01/13,403.61
  6. Step 6: Final answer
    x = 11,178.72

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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.