Home / 10,305.91-14,222.08-5,590.20

Finding the Fourth Proportional to 10,305.91, 14,222.08 and 5,590.20

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Solution

The fourth proportional to 10,305.91, 14,222.08 and 5,590.20 is: 7,714.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,305.91 : 14,222.08 = 5,590.20 : x
  2. Step 2: Convert to fraction form
    10,305.91/14,222.08 = 5,590.20/x
  3. Step 3: Cross multiply
    10,305.91x = 14,222.08 × 5,590.20
  4. Step 4: Simplify right side
    10,305.91x = 79,504,271.62
  5. Step 5: Solve for x
    x = 79,504,271.62/10,305.91
  6. Step 6: Final answer
    x = 7,714.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.