Home / 13,570.20-18,725.85-7,600.50

Finding the Fourth Proportional to 13,570.20, 18,725.85 and 7,600.50

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Solution

The fourth proportional to 13,570.20, 18,725.85 and 7,600.50 is: 10,488.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.20 : 18,725.85 = 7,600.50 : x
  2. Step 2: Convert to fraction form
    13,570.20/18,725.85 = 7,600.50/x
  3. Step 3: Cross multiply
    13,570.20x = 18,725.85 × 7,600.50
  4. Step 4: Simplify right side
    13,570.20x = 142,325,822.93
  5. Step 5: Solve for x
    x = 142,325,822.93/13,570.20
  6. Step 6: Final answer
    x = 10,488.12

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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.