Home / 13,565.12-18,720.05-7,596.73

Finding the Fourth Proportional to 13,565.12, 18,720.05 and 7,596.73

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Solution

The fourth proportional to 13,565.12, 18,720.05 and 7,596.73 is: 10,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,565.12 : 18,720.05 = 7,596.73 : x
  2. Step 2: Convert to fraction form
    13,565.12/18,720.05 = 7,596.73/x
  3. Step 3: Cross multiply
    13,565.12x = 18,720.05 × 7,596.73
  4. Step 4: Simplify right side
    13,565.12x = 142,211,150.85
  5. Step 5: Solve for x
    x = 142,211,150.85/13,565.12
  6. Step 6: Final answer
    x = 10,483.59

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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.