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Finding the Fourth Proportional to 15,198.10, 20,973.36 and 8,483.68

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Solution

The fourth proportional to 15,198.10, 20,973.36 and 8,483.68 is: 11,707.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,198.10 : 20,973.36 = 8,483.68 : x
  2. Step 2: Convert to fraction form
    15,198.10/20,973.36 = 8,483.68/x
  3. Step 3: Cross multiply
    15,198.10x = 20,973.36 × 8,483.68
  4. Step 4: Simplify right side
    15,198.10x = 177,931,274.76
  5. Step 5: Solve for x
    x = 177,931,274.76/15,198.10
  6. Step 6: Final answer
    x = 11,707.47

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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.