Home / 7,477.23-11,215.89-1,930.20

Finding the Fourth Proportional to 7,477.23, 11,215.89 and 1,930.20

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Solution

The fourth proportional to 7,477.23, 11,215.89 and 1,930.20 is: 2,895.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.23 : 11,215.89 = 1,930.20 : x
  2. Step 2: Convert to fraction form
    7,477.23/11,215.89 = 1,930.20/x
  3. Step 3: Cross multiply
    7,477.23x = 11,215.89 × 1,930.20
  4. Step 4: Simplify right side
    7,477.23x = 21,648,897.91
  5. Step 5: Solve for x
    x = 21,648,897.91/7,477.23
  6. Step 6: Final answer
    x = 2,895.31

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Similar ratio
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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.