Home / 13,947.60-19,247.58-7,659.96

Finding the Fourth Proportional to 13,947.60, 19,247.58 and 7,659.96

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Solution

The fourth proportional to 13,947.60, 19,247.58 and 7,659.96 is: 10,570.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.60 : 19,247.58 = 7,659.96 : x
  2. Step 2: Convert to fraction form
    13,947.60/19,247.58 = 7,659.96/x
  3. Step 3: Cross multiply
    13,947.60x = 19,247.58 × 7,659.96
  4. Step 4: Simplify right side
    13,947.60x = 147,435,692.90
  5. Step 5: Solve for x
    x = 147,435,692.90/13,947.60
  6. Step 6: Final answer
    x = 10,570.69

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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.