Home / 13,393.29-18,482.75-7,425.03

Finding the Fourth Proportional to 13,393.29, 18,482.75 and 7,425.03

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Solution

The fourth proportional to 13,393.29, 18,482.75 and 7,425.03 is: 10,246.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.29 : 18,482.75 = 7,425.03 : x
  2. Step 2: Convert to fraction form
    13,393.29/18,482.75 = 7,425.03/x
  3. Step 3: Cross multiply
    13,393.29x = 18,482.75 × 7,425.03
  4. Step 4: Simplify right side
    13,393.29x = 137,234,973.23
  5. Step 5: Solve for x
    x = 137,234,973.23/13,393.29
  6. Step 6: Final answer
    x = 10,246.55

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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.