Home / 13,298.25-18,351.48-7,329.81

Finding the Fourth Proportional to 13,298.25, 18,351.48 and 7,329.81

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Solution

The fourth proportional to 13,298.25, 18,351.48 and 7,329.81 is: 10,115.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.25 : 18,351.48 = 7,329.81 : x
  2. Step 2: Convert to fraction form
    13,298.25/18,351.48 = 7,329.81/x
  3. Step 3: Cross multiply
    13,298.25x = 18,351.48 × 7,329.81
  4. Step 4: Simplify right side
    13,298.25x = 134,512,861.62
  5. Step 5: Solve for x
    x = 134,512,861.62/13,298.25
  6. Step 6: Final answer
    x = 10,115.08

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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.