Home / 9,221.31-13,813.47-4,284.09

Finding the Fourth Proportional to 9,221.31, 13,813.47 and 4,284.09

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Solution

The fourth proportional to 9,221.31, 13,813.47 and 4,284.09 is: 6,417.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.31 : 13,813.47 = 4,284.09 : x
  2. Step 2: Convert to fraction form
    9,221.31/13,813.47 = 4,284.09/x
  3. Step 3: Cross multiply
    9,221.31x = 13,813.47 × 4,284.09
  4. Step 4: Simplify right side
    9,221.31x = 59,178,148.69
  5. Step 5: Solve for x
    x = 59,178,148.69/9,221.31
  6. Step 6: Final answer
    x = 6,417.54

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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.