Home / 13,231.71-18,260.05-7,566.98

Finding the Fourth Proportional to 13,231.71, 18,260.05 and 7,566.98

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Solution

The fourth proportional to 13,231.71, 18,260.05 and 7,566.98 is: 10,442.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,231.71 : 18,260.05 = 7,566.98 : x
  2. Step 2: Convert to fraction form
    13,231.71/18,260.05 = 7,566.98/x
  3. Step 3: Cross multiply
    13,231.71x = 18,260.05 × 7,566.98
  4. Step 4: Simplify right side
    13,231.71x = 138,173,322.93
  5. Step 5: Solve for x
    x = 138,173,322.93/13,231.71
  6. Step 6: Final answer
    x = 10,442.59

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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.