Home / 13,358.28-18,434.54-7,390.14

Finding the Fourth Proportional to 13,358.28, 18,434.54 and 7,390.14

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Solution

The fourth proportional to 13,358.28, 18,434.54 and 7,390.14 is: 10,198.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.28 : 18,434.54 = 7,390.14 : x
  2. Step 2: Convert to fraction form
    13,358.28/18,434.54 = 7,390.14/x
  3. Step 3: Cross multiply
    13,358.28x = 18,434.54 × 7,390.14
  4. Step 4: Simplify right side
    13,358.28x = 136,233,831.44
  5. Step 5: Solve for x
    x = 136,233,831.44/13,358.28
  6. Step 6: Final answer
    x = 10,198.46

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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.