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Finding the Fourth Proportional to 15,984.63, 22,059.53 and 8,911.10

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Solution

The fourth proportional to 15,984.63, 22,059.53 and 8,911.10 is: 12,297.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,984.63 : 22,059.53 = 8,911.10 : x
  2. Step 2: Convert to fraction form
    15,984.63/22,059.53 = 8,911.10/x
  3. Step 3: Cross multiply
    15,984.63x = 22,059.53 × 8,911.10
  4. Step 4: Simplify right side
    15,984.63x = 196,574,677.78
  5. Step 5: Solve for x
    x = 196,574,677.78/15,984.63
  6. Step 6: Final answer
    x = 12,297.73

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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.