Home / 13,257.76-18,295.77-7,289.81

Finding the Fourth Proportional to 13,257.76, 18,295.77 and 7,289.81

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Solution

The fourth proportional to 13,257.76, 18,295.77 and 7,289.81 is: 10,059.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,257.76 : 18,295.77 = 7,289.81 : x
  2. Step 2: Convert to fraction form
    13,257.76/18,295.77 = 7,289.81/x
  3. Step 3: Cross multiply
    13,257.76x = 18,295.77 × 7,289.81
  4. Step 4: Simplify right side
    13,257.76x = 133,372,717.30
  5. Step 5: Solve for x
    x = 133,372,717.30/13,257.76
  6. Step 6: Final answer
    x = 10,059.98

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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.