Home / 11,688.49-16,128.48-6,651.10

Finding the Fourth Proportional to 11,688.49, 16,128.48 and 6,651.10

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Solution

The fourth proportional to 11,688.49, 16,128.48 and 6,651.10 is: 9,177.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,688.49 : 16,128.48 = 6,651.10 : x
  2. Step 2: Convert to fraction form
    11,688.49/16,128.48 = 6,651.10/x
  3. Step 3: Cross multiply
    11,688.49x = 16,128.48 × 6,651.10
  4. Step 4: Simplify right side
    11,688.49x = 107,272,133.33
  5. Step 5: Solve for x
    x = 107,272,133.33/11,688.49
  6. Step 6: Final answer
    x = 9,177.59

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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.