Home / 12,448.11-17,178.39-6,859.11

Finding the Fourth Proportional to 12,448.11, 17,178.39 and 6,859.11

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Solution

The fourth proportional to 12,448.11, 17,178.39 and 6,859.11 is: 9,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,448.11 : 17,178.39 = 6,859.11 : x
  2. Step 2: Convert to fraction form
    12,448.11/17,178.39 = 6,859.11/x
  3. Step 3: Cross multiply
    12,448.11x = 17,178.39 × 6,859.11
  4. Step 4: Simplify right side
    12,448.11x = 117,828,466.63
  5. Step 5: Solve for x
    x = 117,828,466.63/12,448.11
  6. Step 6: Final answer
    x = 9,465.57

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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.