Home / 11,707.72-16,156.68-6,402.56

Finding the Fourth Proportional to 11,707.72, 16,156.68 and 6,402.56

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Solution

The fourth proportional to 11,707.72, 16,156.68 and 6,402.56 is: 8,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,707.72 : 16,156.68 = 6,402.56 : x
  2. Step 2: Convert to fraction form
    11,707.72/16,156.68 = 6,402.56/x
  3. Step 3: Cross multiply
    11,707.72x = 16,156.68 × 6,402.56
  4. Step 4: Simplify right side
    11,707.72x = 103,444,113.10
  5. Step 5: Solve for x
    x = 103,444,113.10/11,707.72
  6. Step 6: Final answer
    x = 8,835.55

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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.