Home / 11,945.79-16,484.45-6,640.52

Finding the Fourth Proportional to 11,945.79, 16,484.45 and 6,640.52

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Solution

The fourth proportional to 11,945.79, 16,484.45 and 6,640.52 is: 9,163.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,945.79 : 16,484.45 = 6,640.52 : x
  2. Step 2: Convert to fraction form
    11,945.79/16,484.45 = 6,640.52/x
  3. Step 3: Cross multiply
    11,945.79x = 16,484.45 × 6,640.52
  4. Step 4: Simplify right side
    11,945.79x = 109,465,204.29
  5. Step 5: Solve for x
    x = 109,465,204.29/11,945.79
  6. Step 6: Final answer
    x = 9,163.50

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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.