Home / 13,162.25-18,165.09-7,495.76

Finding the Fourth Proportional to 13,162.25, 18,165.09 and 7,495.76

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Solution

The fourth proportional to 13,162.25, 18,165.09 and 7,495.76 is: 10,344.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.25 : 18,165.09 = 7,495.76 : x
  2. Step 2: Convert to fraction form
    13,162.25/18,165.09 = 7,495.76/x
  3. Step 3: Cross multiply
    13,162.25x = 18,165.09 × 7,495.76
  4. Step 4: Simplify right side
    13,162.25x = 136,161,155.02
  5. Step 5: Solve for x
    x = 136,161,155.02/13,162.25
  6. Step 6: Final answer
    x = 10,344.82

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Double scale
Find fourth proportional to 13,163.25, 18,166.47 and 7,496.76
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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.