Home / 15,945.18-22,003.81-8,871.45

Finding the Fourth Proportional to 15,945.18, 22,003.81 and 8,871.45

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Solution

The fourth proportional to 15,945.18, 22,003.81 and 8,871.45 is: 12,242.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,945.18 : 22,003.81 = 8,871.45 : x
  2. Step 2: Convert to fraction form
    15,945.18/22,003.81 = 8,871.45/x
  3. Step 3: Cross multiply
    15,945.18x = 22,003.81 × 8,871.45
  4. Step 4: Simplify right side
    15,945.18x = 195,205,700.22
  5. Step 5: Solve for x
    x = 195,205,700.22/15,945.18
  6. Step 6: Final answer
    x = 12,242.30

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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.