Home / 15,947.57-22,007.09-8,777.45

Finding the Fourth Proportional to 15,947.57, 22,007.09 and 8,777.45

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Solution

The fourth proportional to 15,947.57, 22,007.09 and 8,777.45 is: 12,112.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,947.57 : 22,007.09 = 8,777.45 : x
  2. Step 2: Convert to fraction form
    15,947.57/22,007.09 = 8,777.45/x
  3. Step 3: Cross multiply
    15,947.57x = 22,007.09 × 8,777.45
  4. Step 4: Simplify right side
    15,947.57x = 193,166,209.08
  5. Step 5: Solve for x
    x = 193,166,209.08/15,947.57
  6. Step 6: Final answer
    x = 12,112.58

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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.