Home / 13,248.39-18,274.65-7,867.17

Finding the Fourth Proportional to 13,248.39, 18,274.65 and 7,867.17

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Solution

The fourth proportional to 13,248.39, 18,274.65 and 7,867.17 is: 10,851.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248.39 : 18,274.65 = 7,867.17 : x
  2. Step 2: Convert to fraction form
    13,248.39/18,274.65 = 7,867.17/x
  3. Step 3: Cross multiply
    13,248.39x = 18,274.65 × 7,867.17
  4. Step 4: Simplify right side
    13,248.39x = 143,769,778.24
  5. Step 5: Solve for x
    x = 143,769,778.24/13,248.39
  6. Step 6: Final answer
    x = 10,851.87

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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.