Home / 13,366.66-18,446.27-7,398.18

Finding the Fourth Proportional to 13,366.66, 18,446.27 and 7,398.18

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Solution

The fourth proportional to 13,366.66, 18,446.27 and 7,398.18 is: 10,209.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,366.66 : 18,446.27 = 7,398.18 : x
  2. Step 2: Convert to fraction form
    13,366.66/18,446.27 = 7,398.18/x
  3. Step 3: Cross multiply
    13,366.66x = 18,446.27 × 7,398.18
  4. Step 4: Simplify right side
    13,366.66x = 136,468,825.79
  5. Step 5: Solve for x
    x = 136,468,825.79/13,366.66
  6. Step 6: Final answer
    x = 10,209.64

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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.