Home / 9,709.08-13,394.33-6,121.21

Finding the Fourth Proportional to 9,709.08, 13,394.33 and 6,121.21

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Solution

The fourth proportional to 9,709.08, 13,394.33 and 6,121.21 is: 8,444.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,709.08 : 13,394.33 = 6,121.21 : x
  2. Step 2: Convert to fraction form
    9,709.08/13,394.33 = 6,121.21/x
  3. Step 3: Cross multiply
    9,709.08x = 13,394.33 × 6,121.21
  4. Step 4: Simplify right side
    9,709.08x = 81,989,476.13
  5. Step 5: Solve for x
    x = 81,989,476.13/9,709.08
  6. Step 6: Final answer
    x = 8,444.62

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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.