Home / 10,089.50-13,912.98-6,109.16

Finding the Fourth Proportional to 10,089.50, 13,912.98 and 6,109.16

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Solution

The fourth proportional to 10,089.50, 13,912.98 and 6,109.16 is: 8,424.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,089.50 : 13,912.98 = 6,109.16 : x
  2. Step 2: Convert to fraction form
    10,089.50/13,912.98 = 6,109.16/x
  3. Step 3: Cross multiply
    10,089.50x = 13,912.98 × 6,109.16
  4. Step 4: Simplify right side
    10,089.50x = 84,996,620.90
  5. Step 5: Solve for x
    x = 84,996,620.90/10,089.50
  6. Step 6: Final answer
    x = 8,424.26

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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.