Home / 7,853.20-11,777.42-2,587.23

Finding the Fourth Proportional to 7,853.20, 11,777.42 and 2,587.23

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Solution

The fourth proportional to 7,853.20, 11,777.42 and 2,587.23 is: 3,880.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,853.20 : 11,777.42 = 2,587.23 : x
  2. Step 2: Convert to fraction form
    7,853.20/11,777.42 = 2,587.23/x
  3. Step 3: Cross multiply
    7,853.20x = 11,777.42 × 2,587.23
  4. Step 4: Simplify right side
    7,853.20x = 30,470,900.81
  5. Step 5: Solve for x
    x = 30,470,900.81/7,853.20
  6. Step 6: Final answer
    x = 3,880.06

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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.