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Finding the Fourth Proportional to 8,445.66, 12,668.70 and 2,602.32

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Solution

The fourth proportional to 8,445.66, 12,668.70 and 2,602.32 is: 3,903.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.66 : 12,668.70 = 2,602.32 : x
  2. Step 2: Convert to fraction form
    8,445.66/12,668.70 = 2,602.32/x
  3. Step 3: Cross multiply
    8,445.66x = 12,668.70 × 2,602.32
  4. Step 4: Simplify right side
    8,445.66x = 32,968,011.38
  5. Step 5: Solve for x
    x = 32,968,011.38/8,445.66
  6. Step 6: Final answer
    x = 3,903.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.