Home / 13,166.59-18,171.60-7,503.39

Finding the Fourth Proportional to 13,166.59, 18,171.60 and 7,503.39

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Solution

The fourth proportional to 13,166.59, 18,171.60 and 7,503.39 is: 10,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.59 : 18,171.60 = 7,503.39 : x
  2. Step 2: Convert to fraction form
    13,166.59/18,171.60 = 7,503.39/x
  3. Step 3: Cross multiply
    13,166.59x = 18,171.60 × 7,503.39
  4. Step 4: Simplify right side
    13,166.59x = 136,348,601.72
  5. Step 5: Solve for x
    x = 136,348,601.72/13,166.59
  6. Step 6: Final answer
    x = 10,355.65

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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.