Home / 13,257.66-18,295.59-7,289.43

Finding the Fourth Proportional to 13,257.66, 18,295.59 and 7,289.43

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Solution

The fourth proportional to 13,257.66, 18,295.59 and 7,289.43 is: 10,059.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.66 : 18,295.59 = 7,289.43 : x
  2. Step 2: Convert to fraction form
    13,257.66/18,295.59 = 7,289.43/x
  3. Step 3: Cross multiply
    13,257.66x = 18,295.59 × 7,289.43
  4. Step 4: Simplify right side
    13,257.66x = 133,364,422.61
  5. Step 5: Solve for x
    x = 133,364,422.61/13,257.66
  6. Step 6: Final answer
    x = 10,059.42

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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.