Home / 15,903.27-21,947.22-8,829.63

Finding the Fourth Proportional to 15,903.27, 21,947.22 and 8,829.63

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Solution

The fourth proportional to 15,903.27, 21,947.22 and 8,829.63 is: 12,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,903.27 : 21,947.22 = 8,829.63 : x
  2. Step 2: Convert to fraction form
    15,903.27/21,947.22 = 8,829.63/x
  3. Step 3: Cross multiply
    15,903.27x = 21,947.22 × 8,829.63
  4. Step 4: Simplify right side
    15,903.27x = 193,785,832.13
  5. Step 5: Solve for x
    x = 193,785,832.13/15,903.27
  6. Step 6: Final answer
    x = 12,185.28

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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.