Home / 15,920.37-21,970.80-8,846.79

Finding the Fourth Proportional to 15,920.37, 21,970.80 and 8,846.79

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Solution

The fourth proportional to 15,920.37, 21,970.80 and 8,846.79 is: 12,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,920.37 : 21,970.80 = 8,846.79 : x
  2. Step 2: Convert to fraction form
    15,920.37/21,970.80 = 8,846.79/x
  3. Step 3: Cross multiply
    15,920.37x = 21,970.80 × 8,846.79
  4. Step 4: Simplify right side
    15,920.37x = 194,371,053.73
  5. Step 5: Solve for x
    x = 194,371,053.73/15,920.37
  6. Step 6: Final answer
    x = 12,208.95

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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.