Home / 15,970.80-22,040.37-8,897.22

Finding the Fourth Proportional to 15,970.80, 22,040.37 and 8,897.22

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Solution

The fourth proportional to 15,970.80, 22,040.37 and 8,897.22 is: 12,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,970.80 : 22,040.37 = 8,897.22 : x
  2. Step 2: Convert to fraction form
    15,970.80/22,040.37 = 8,897.22/x
  3. Step 3: Cross multiply
    15,970.80x = 22,040.37 × 8,897.22
  4. Step 4: Simplify right side
    15,970.80x = 196,098,020.77
  5. Step 5: Solve for x
    x = 196,098,020.77/15,970.80
  6. Step 6: Final answer
    x = 12,278.53

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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.