Home / 13,083.67-18,055.37-7,115.35

Finding the Fourth Proportional to 13,083.67, 18,055.37 and 7,115.35

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Solution

The fourth proportional to 13,083.67, 18,055.37 and 7,115.35 is: 9,819.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.67 : 18,055.37 = 7,115.35 : x
  2. Step 2: Convert to fraction form
    13,083.67/18,055.37 = 7,115.35/x
  3. Step 3: Cross multiply
    13,083.67x = 18,055.37 × 7,115.35
  4. Step 4: Simplify right side
    13,083.67x = 128,470,276.93
  5. Step 5: Solve for x
    x = 128,470,276.93/13,083.67
  6. Step 6: Final answer
    x = 9,819.13

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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.