Home / 9,421.31-13,001.61-5,648.44

Finding the Fourth Proportional to 9,421.31, 13,001.61 and 5,648.44

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Solution

The fourth proportional to 9,421.31, 13,001.61 and 5,648.44 is: 7,794.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.31 : 13,001.61 = 5,648.44 : x
  2. Step 2: Convert to fraction form
    9,421.31/13,001.61 = 5,648.44/x
  3. Step 3: Cross multiply
    9,421.31x = 13,001.61 × 5,648.44
  4. Step 4: Simplify right side
    9,421.31x = 73,438,813.99
  5. Step 5: Solve for x
    x = 73,438,813.99/9,421.31
  6. Step 6: Final answer
    x = 7,794.97

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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.