Home / 15,733.71-21,711.81-8,563.66

Finding the Fourth Proportional to 15,733.71, 21,711.81 and 8,563.66

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Solution

The fourth proportional to 15,733.71, 21,711.81 and 8,563.66 is: 11,817.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,733.71 : 21,711.81 = 8,563.66 : x
  2. Step 2: Convert to fraction form
    15,733.71/21,711.81 = 8,563.66/x
  3. Step 3: Cross multiply
    15,733.71x = 21,711.81 × 8,563.66
  4. Step 4: Simplify right side
    15,733.71x = 185,932,536.66
  5. Step 5: Solve for x
    x = 185,932,536.66/15,733.71
  6. Step 6: Final answer
    x = 11,817.46

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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.