Home / 15,693.27-21,670.77-11,707.46

Finding the Fourth Proportional to 15,693.27, 21,670.77 and 11,707.46

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Solution

The fourth proportional to 15,693.27, 21,670.77 and 11,707.46 is: 16,166.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.27 : 21,670.77 = 11,707.46 : x
  2. Step 2: Convert to fraction form
    15,693.27/21,670.77 = 11,707.46/x
  3. Step 3: Cross multiply
    15,693.27x = 21,670.77 × 11,707.46
  4. Step 4: Simplify right side
    15,693.27x = 253,709,672.94
  5. Step 5: Solve for x
    x = 253,709,672.94/15,693.27
  6. Step 6: Final answer
    x = 16,166.78

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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.