Home / 15,983.18-22,056.95-8,813.36

Finding the Fourth Proportional to 15,983.18, 22,056.95 and 8,813.36

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Solution

The fourth proportional to 15,983.18, 22,056.95 and 8,813.36 is: 12,162.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,983.18 : 22,056.95 = 8,813.36 : x
  2. Step 2: Convert to fraction form
    15,983.18/22,056.95 = 8,813.36/x
  3. Step 3: Cross multiply
    15,983.18x = 22,056.95 × 8,813.36
  4. Step 4: Simplify right side
    15,983.18x = 194,395,840.85
  5. Step 5: Solve for x
    x = 194,395,840.85/15,983.18
  6. Step 6: Final answer
    x = 12,162.53

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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.