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Finding the Fourth Proportional to 13,393.31, 18,482.99 and 7,425.23

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Solution

The fourth proportional to 13,393.31, 18,482.99 and 7,425.23 is: 10,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.31 : 18,482.99 = 7,425.23 : x
  2. Step 2: Convert to fraction form
    13,393.31/18,482.99 = 7,425.23/x
  3. Step 3: Cross multiply
    13,393.31x = 18,482.99 × 7,425.23
  4. Step 4: Simplify right side
    13,393.31x = 137,240,322.30
  5. Step 5: Solve for x
    x = 137,240,322.30/13,393.31
  6. Step 6: Final answer
    x = 10,246.93

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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.