Home / 9,805.60-14,714.70-5,426.20

Finding the Fourth Proportional to 9,805.60, 14,714.70 and 5,426.20

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Solution

The fourth proportional to 9,805.60, 14,714.70 and 5,426.20 is: 8,142.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,805.60 : 14,714.70 = 5,426.20 : x
  2. Step 2: Convert to fraction form
    9,805.60/14,714.70 = 5,426.20/x
  3. Step 3: Cross multiply
    9,805.60x = 14,714.70 × 5,426.20
  4. Step 4: Simplify right side
    9,805.60x = 79,844,905.14
  5. Step 5: Solve for x
    x = 79,844,905.14/9,805.60
  6. Step 6: Final answer
    x = 8,142.79

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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.