Home / 10,089.84-13,920.66-6,109.44

Finding the Fourth Proportional to 10,089.84, 13,920.66 and 6,109.44

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Solution

The fourth proportional to 10,089.84, 13,920.66 and 6,109.44 is: 8,429.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.84 : 13,920.66 = 6,109.44 : x
  2. Step 2: Convert to fraction form
    10,089.84/13,920.66 = 6,109.44/x
  3. Step 3: Cross multiply
    10,089.84x = 13,920.66 × 6,109.44
  4. Step 4: Simplify right side
    10,089.84x = 85,047,437.03
  5. Step 5: Solve for x
    x = 85,047,437.03/10,089.84
  6. Step 6: Final answer
    x = 8,429.02

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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.