Home / 7,665.16-11,495.68-2,117.20

Finding the Fourth Proportional to 7,665.16, 11,495.68 and 2,117.20

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Solution

The fourth proportional to 7,665.16, 11,495.68 and 2,117.20 is: 3,175.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,665.16 : 11,495.68 = 2,117.20 : x
  2. Step 2: Convert to fraction form
    7,665.16/11,495.68 = 2,117.20/x
  3. Step 3: Cross multiply
    7,665.16x = 11,495.68 × 2,117.20
  4. Step 4: Simplify right side
    7,665.16x = 24,338,653.70
  5. Step 5: Solve for x
    x = 24,338,653.70/7,665.16
  6. Step 6: Final answer
    x = 3,175.23

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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.