Home / 13,327.24-18,385.50-7,735

Finding the Fourth Proportional to 13,327.24, 18,385.50 and 7,735

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Solution

The fourth proportional to 13,327.24, 18,385.50 and 7,735 is: 10,670.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,327.24 : 18,385.50 = 7,735 : x
  2. Step 2: Convert to fraction form
    13,327.24/18,385.50 = 7,735/x
  3. Step 3: Cross multiply
    13,327.24x = 18,385.50 × 7,735
  4. Step 4: Simplify right side
    13,327.24x = 142,211,842.50
  5. Step 5: Solve for x
    x = 142,211,842.50/13,327.24
  6. Step 6: Final answer
    x = 10,670.76

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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.