Home / 13,083.53-18,054.90-7,115.45

Finding the Fourth Proportional to 13,083.53, 18,054.90 and 7,115.45

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Solution

The fourth proportional to 13,083.53, 18,054.90 and 7,115.45 is: 9,819.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.53 : 18,054.90 = 7,115.45 : x
  2. Step 2: Convert to fraction form
    13,083.53/18,054.90 = 7,115.45/x
  3. Step 3: Cross multiply
    13,083.53x = 18,054.90 × 7,115.45
  4. Step 4: Simplify right side
    13,083.53x = 128,468,647.93
  5. Step 5: Solve for x
    x = 128,468,647.93/13,083.53
  6. Step 6: Final answer
    x = 9,819.12

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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.