Home / 11,912.02-16,439.10-6,606.47

Finding the Fourth Proportional to 11,912.02, 16,439.10 and 6,606.47

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Solution

The fourth proportional to 11,912.02, 16,439.10 and 6,606.47 is: 9,117.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,912.02 : 16,439.10 = 6,606.47 : x
  2. Step 2: Convert to fraction form
    11,912.02/16,439.10 = 6,606.47/x
  3. Step 3: Cross multiply
    11,912.02x = 16,439.10 × 6,606.47
  4. Step 4: Simplify right side
    11,912.02x = 108,604,420.98
  5. Step 5: Solve for x
    x = 108,604,420.98/11,912.02
  6. Step 6: Final answer
    x = 9,117.22

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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.