Home / 13,358.62-18,434.96-7,390.68

Finding the Fourth Proportional to 13,358.62, 18,434.96 and 7,390.68

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Solution

The fourth proportional to 13,358.62, 18,434.96 and 7,390.68 is: 10,199.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358.62 : 18,434.96 = 7,390.68 : x
  2. Step 2: Convert to fraction form
    13,358.62/18,434.96 = 7,390.68/x
  3. Step 3: Cross multiply
    13,358.62x = 18,434.96 × 7,390.68
  4. Step 4: Simplify right side
    13,358.62x = 136,246,811.80
  5. Step 5: Solve for x
    x = 136,246,811.80/13,358.62
  6. Step 6: Final answer
    x = 10,199.17

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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.