Home / 7,679.18-11,518.99-2,132.93

Finding the Fourth Proportional to 7,679.18, 11,518.99 and 2,132.93

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Solution

The fourth proportional to 7,679.18, 11,518.99 and 2,132.93 is: 3,199.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,679.18 : 11,518.99 = 2,132.93 : x
  2. Step 2: Convert to fraction form
    7,679.18/11,518.99 = 2,132.93/x
  3. Step 3: Cross multiply
    7,679.18x = 11,518.99 × 2,132.93
  4. Step 4: Simplify right side
    7,679.18x = 24,569,222.81
  5. Step 5: Solve for x
    x = 24,569,222.81/7,679.18
  6. Step 6: Final answer
    x = 3,199.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.