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Finding the Fourth Proportional to 9,703.73, 14,555.59 and 3,129.91

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Solution

The fourth proportional to 9,703.73, 14,555.59 and 3,129.91 is: 4,694.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703.73 : 14,555.59 = 3,129.91 : x
  2. Step 2: Convert to fraction form
    9,703.73/14,555.59 = 3,129.91/x
  3. Step 3: Cross multiply
    9,703.73x = 14,555.59 × 3,129.91
  4. Step 4: Simplify right side
    9,703.73x = 45,557,678.87
  5. Step 5: Solve for x
    x = 45,557,678.87/9,703.73
  6. Step 6: Final answer
    x = 4,694.86

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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.