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Finding the Fourth Proportional to 9,805.58, 14,710.85 and 4,257.58

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Solution

The fourth proportional to 9,805.58, 14,710.85 and 4,257.58 is: 6,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,805.58 : 14,710.85 = 4,257.58 : x
  2. Step 2: Convert to fraction form
    9,805.58/14,710.85 = 4,257.58/x
  3. Step 3: Cross multiply
    9,805.58x = 14,710.85 × 4,257.58
  4. Step 4: Simplify right side
    9,805.58x = 62,632,620.74
  5. Step 5: Solve for x
    x = 62,632,620.74/9,805.58
  6. Step 6: Final answer
    x = 6,387.45

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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.