Home / 7,718.13-11,577.15-5,371.20

Finding the Fourth Proportional to 7,718.13, 11,577.15 and 5,371.20

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Solution

The fourth proportional to 7,718.13, 11,577.15 and 5,371.20 is: 8,056.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,718.13 : 11,577.15 = 5,371.20 : x
  2. Step 2: Convert to fraction form
    7,718.13/11,577.15 = 5,371.20/x
  3. Step 3: Cross multiply
    7,718.13x = 11,577.15 × 5,371.20
  4. Step 4: Simplify right side
    7,718.13x = 62,183,188.08
  5. Step 5: Solve for x
    x = 62,183,188.08/7,718.13
  6. Step 6: Final answer
    x = 8,056.77

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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.