Home / 10,669.90-14,720.66-6,191.22

Finding the Fourth Proportional to 10,669.90, 14,720.66 and 6,191.22

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Solution

The fourth proportional to 10,669.90, 14,720.66 and 6,191.22 is: 8,541.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.90 : 14,720.66 = 6,191.22 : x
  2. Step 2: Convert to fraction form
    10,669.90/14,720.66 = 6,191.22/x
  3. Step 3: Cross multiply
    10,669.90x = 14,720.66 × 6,191.22
  4. Step 4: Simplify right side
    10,669.90x = 91,138,844.61
  5. Step 5: Solve for x
    x = 91,138,844.61/10,669.90
  6. Step 6: Final answer
    x = 8,541.68

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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.