Home / 9,285.15-12,814.43-5,306.84

Finding the Fourth Proportional to 9,285.15, 12,814.43 and 5,306.84

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Solution

The fourth proportional to 9,285.15, 12,814.43 and 5,306.84 is: 7,323.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.15 : 12,814.43 = 5,306.84 : x
  2. Step 2: Convert to fraction form
    9,285.15/12,814.43 = 5,306.84/x
  3. Step 3: Cross multiply
    9,285.15x = 12,814.43 × 5,306.84
  4. Step 4: Simplify right side
    9,285.15x = 68,004,129.70
  5. Step 5: Solve for x
    x = 68,004,129.70/9,285.15
  6. Step 6: Final answer
    x = 7,323.97

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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.