Home / 13,513.39-20,269.64-6,117.85

Finding the Fourth Proportional to 13,513.39, 20,269.64 and 6,117.85

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Solution

The fourth proportional to 13,513.39, 20,269.64 and 6,117.85 is: 9,176.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.39 : 20,269.64 = 6,117.85 : x
  2. Step 2: Convert to fraction form
    13,513.39/20,269.64 = 6,117.85/x
  3. Step 3: Cross multiply
    13,513.39x = 20,269.64 × 6,117.85
  4. Step 4: Simplify right side
    13,513.39x = 124,006,617.07
  5. Step 5: Solve for x
    x = 124,006,617.07/13,513.39
  6. Step 6: Final answer
    x = 9,176.57

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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.