Home / 13,298.45-18,351.62-7,329.99

Finding the Fourth Proportional to 13,298.45, 18,351.62 and 7,329.99

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Solution

The fourth proportional to 13,298.45, 18,351.62 and 7,329.99 is: 10,115.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.45 : 18,351.62 = 7,329.99 : x
  2. Step 2: Convert to fraction form
    13,298.45/18,351.62 = 7,329.99/x
  3. Step 3: Cross multiply
    13,298.45x = 18,351.62 × 7,329.99
  4. Step 4: Simplify right side
    13,298.45x = 134,517,154.43
  5. Step 5: Solve for x
    x = 134,517,154.43/13,298.45
  6. Step 6: Final answer
    x = 10,115.25

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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.