Home / 15,313.92-21,133.14-8,599.66

Finding the Fourth Proportional to 15,313.92, 21,133.14 and 8,599.66

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Solution

The fourth proportional to 15,313.92, 21,133.14 and 8,599.66 is: 11,867.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,313.92 : 21,133.14 = 8,599.66 : x
  2. Step 2: Convert to fraction form
    15,313.92/21,133.14 = 8,599.66/x
  3. Step 3: Cross multiply
    15,313.92x = 21,133.14 × 8,599.66
  4. Step 4: Simplify right side
    15,313.92x = 181,737,818.73
  5. Step 5: Solve for x
    x = 181,737,818.73/15,313.92
  6. Step 6: Final answer
    x = 11,867.49

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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.