Home / 9,421.67-13,030.11-8,240.69

Finding the Fourth Proportional to 9,421.67, 13,030.11 and 8,240.69

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Solution

The fourth proportional to 9,421.67, 13,030.11 and 8,240.69 is: 11,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,421.67 : 13,030.11 = 8,240.69 : x
  2. Step 2: Convert to fraction form
    9,421.67/13,030.11 = 8,240.69/x
  3. Step 3: Cross multiply
    9,421.67x = 13,030.11 × 8,240.69
  4. Step 4: Simplify right side
    9,421.67x = 107,377,032.03
  5. Step 5: Solve for x
    x = 107,377,032.03/9,421.67
  6. Step 6: Final answer
    x = 11,396.82

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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.