Home / 13,326.16-18,388.64-7,357.44

Finding the Fourth Proportional to 13,326.16, 18,388.64 and 7,357.44

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Solution

The fourth proportional to 13,326.16, 18,388.64 and 7,357.44 is: 10,152.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.16 : 18,388.64 = 7,357.44 : x
  2. Step 2: Convert to fraction form
    13,326.16/18,388.64 = 7,357.44/x
  3. Step 3: Cross multiply
    13,326.16x = 18,388.64 × 7,357.44
  4. Step 4: Simplify right side
    13,326.16x = 135,293,315.48
  5. Step 5: Solve for x
    x = 135,293,315.48/13,326.16
  6. Step 6: Final answer
    x = 10,152.46

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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.