Home / 13,301.28-18,355.68-7,332.66

Finding the Fourth Proportional to 13,301.28, 18,355.68 and 7,332.66

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Solution

The fourth proportional to 13,301.28, 18,355.68 and 7,332.66 is: 10,119.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,301.28 : 18,355.68 = 7,332.66 : x
  2. Step 2: Convert to fraction form
    13,301.28/18,355.68 = 7,332.66/x
  3. Step 3: Cross multiply
    13,301.28x = 18,355.68 × 7,332.66
  4. Step 4: Simplify right side
    13,301.28x = 134,595,960.51
  5. Step 5: Solve for x
    x = 134,595,960.51/13,301.28
  6. Step 6: Final answer
    x = 10,119.02

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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.