Home / 13,257.52-18,295.69-7,289.30

Finding the Fourth Proportional to 13,257.52, 18,295.69 and 7,289.30

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Solution

The fourth proportional to 13,257.52, 18,295.69 and 7,289.30 is: 10,059.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.52 : 18,295.69 = 7,289.30 : x
  2. Step 2: Convert to fraction form
    13,257.52/18,295.69 = 7,289.30/x
  3. Step 3: Cross multiply
    13,257.52x = 18,295.69 × 7,289.30
  4. Step 4: Simplify right side
    13,257.52x = 133,362,773.12
  5. Step 5: Solve for x
    x = 133,362,773.12/13,257.52
  6. Step 6: Final answer
    x = 10,059.41

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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.