Home / 9,285.48-12,814.84-5,305.82

Finding the Fourth Proportional to 9,285.48, 12,814.84 and 5,305.82

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Solution

The fourth proportional to 9,285.48, 12,814.84 and 5,305.82 is: 7,322.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,285.48 : 12,814.84 = 5,305.82 : x
  2. Step 2: Convert to fraction form
    9,285.48/12,814.84 = 5,305.82/x
  3. Step 3: Cross multiply
    9,285.48x = 12,814.84 × 5,305.82
  4. Step 4: Simplify right side
    9,285.48x = 67,993,175.80
  5. Step 5: Solve for x
    x = 67,993,175.80/9,285.48
  6. Step 6: Final answer
    x = 7,322.53

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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.