Home / 11,957.29-16,499.90-6,920.51

Finding the Fourth Proportional to 11,957.29, 16,499.90 and 6,920.51

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Solution

The fourth proportional to 11,957.29, 16,499.90 and 6,920.51 is: 9,549.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,957.29 : 16,499.90 = 6,920.51 : x
  2. Step 2: Convert to fraction form
    11,957.29/16,499.90 = 6,920.51/x
  3. Step 3: Cross multiply
    11,957.29x = 16,499.90 × 6,920.51
  4. Step 4: Simplify right side
    11,957.29x = 114,187,657.75
  5. Step 5: Solve for x
    x = 114,187,657.75/11,957.29
  6. Step 6: Final answer
    x = 9,549.63

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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.