Home / 13,166.35-18,171.27-7,503.12

Finding the Fourth Proportional to 13,166.35, 18,171.27 and 7,503.12

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Solution

The fourth proportional to 13,166.35, 18,171.27 and 7,503.12 is: 10,355.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,166.35 : 18,171.27 = 7,503.12 : x
  2. Step 2: Convert to fraction form
    13,166.35/18,171.27 = 7,503.12/x
  3. Step 3: Cross multiply
    13,166.35x = 18,171.27 × 7,503.12
  4. Step 4: Simplify right side
    13,166.35x = 136,341,219.36
  5. Step 5: Solve for x
    x = 136,341,219.36/13,166.35
  6. Step 6: Final answer
    x = 10,355.28

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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.