Home / 13,293.39-18,344.64-7,325.61

Finding the Fourth Proportional to 13,293.39, 18,344.64 and 7,325.61

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Solution

The fourth proportional to 13,293.39, 18,344.64 and 7,325.61 is: 10,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.39 : 18,344.64 = 7,325.61 : x
  2. Step 2: Convert to fraction form
    13,293.39/18,344.64 = 7,325.61/x
  3. Step 3: Cross multiply
    13,293.39x = 18,344.64 × 7,325.61
  4. Step 4: Simplify right side
    13,293.39x = 134,385,678.23
  5. Step 5: Solve for x
    x = 134,385,678.23/13,293.39
  6. Step 6: Final answer
    x = 10,109.21

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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.