Home / 13,298.23-18,351.12-7,330

Finding the Fourth Proportional to 13,298.23, 18,351.12 and 7,330

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Solution

The fourth proportional to 13,298.23, 18,351.12 and 7,330 is: 10,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,298.23 : 18,351.12 = 7,330 : x
  2. Step 2: Convert to fraction form
    13,298.23/18,351.12 = 7,330/x
  3. Step 3: Cross multiply
    13,298.23x = 18,351.12 × 7,330
  4. Step 4: Simplify right side
    13,298.23x = 134,513,709.60
  5. Step 5: Solve for x
    x = 134,513,709.60/13,298.23
  6. Step 6: Final answer
    x = 10,115.16

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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.