Home / 13,630.11-18,803.20-8,849.69

Finding the Fourth Proportional to 13,630.11, 18,803.20 and 8,849.69

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Solution

The fourth proportional to 13,630.11, 18,803.20 and 8,849.69 is: 12,208.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,630.11 : 18,803.20 = 8,849.69 : x
  2. Step 2: Convert to fraction form
    13,630.11/18,803.20 = 8,849.69/x
  3. Step 3: Cross multiply
    13,630.11x = 18,803.20 × 8,849.69
  4. Step 4: Simplify right side
    13,630.11x = 166,402,491.01
  5. Step 5: Solve for x
    x = 166,402,491.01/13,630.11
  6. Step 6: Final answer
    x = 12,208.45

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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.