Home / 13,367.79-18,451.66-7,706.32

Finding the Fourth Proportional to 13,367.79, 18,451.66 and 7,706.32

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Solution

The fourth proportional to 13,367.79, 18,451.66 and 7,706.32 is: 10,637.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,367.79 : 18,451.66 = 7,706.32 : x
  2. Step 2: Convert to fraction form
    13,367.79/18,451.66 = 7,706.32/x
  3. Step 3: Cross multiply
    13,367.79x = 18,451.66 × 7,706.32
  4. Step 4: Simplify right side
    13,367.79x = 142,194,396.49
  5. Step 5: Solve for x
    x = 142,194,396.49/13,367.79
  6. Step 6: Final answer
    x = 10,637.09

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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.