Home / 15,202.20-20,973.08-8,827.70

Finding the Fourth Proportional to 15,202.20, 20,973.08 and 8,827.70

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Solution

The fourth proportional to 15,202.20, 20,973.08 and 8,827.70 is: 12,178.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,202.20 : 20,973.08 = 8,827.70 : x
  2. Step 2: Convert to fraction form
    15,202.20/20,973.08 = 8,827.70/x
  3. Step 3: Cross multiply
    15,202.20x = 20,973.08 × 8,827.70
  4. Step 4: Simplify right side
    15,202.20x = 185,144,014.18
  5. Step 5: Solve for x
    x = 185,144,014.18/15,202.20
  6. Step 6: Final answer
    x = 12,178.76

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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.