Home / 15,970.60-22,040.22-8,896.96

Finding the Fourth Proportional to 15,970.60, 22,040.22 and 8,896.96

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Solution

The fourth proportional to 15,970.60, 22,040.22 and 8,896.96 is: 12,278.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,970.60 : 22,040.22 = 8,896.96 : x
  2. Step 2: Convert to fraction form
    15,970.60/22,040.22 = 8,896.96/x
  3. Step 3: Cross multiply
    15,970.60x = 22,040.22 × 8,896.96
  4. Step 4: Simplify right side
    15,970.60x = 196,090,955.73
  5. Step 5: Solve for x
    x = 196,090,955.73/15,970.60
  6. Step 6: Final answer
    x = 12,278.25

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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.