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Finding the Fourth Proportional to 8,445.74, 12,670.48 and 2,898.96

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Solution

The fourth proportional to 8,445.74, 12,670.48 and 2,898.96 is: 4,349.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.74 : 12,670.48 = 2,898.96 : x
  2. Step 2: Convert to fraction form
    8,445.74/12,670.48 = 2,898.96/x
  3. Step 3: Cross multiply
    8,445.74x = 12,670.48 × 2,898.96
  4. Step 4: Simplify right side
    8,445.74x = 36,731,214.70
  5. Step 5: Solve for x
    x = 36,731,214.70/8,445.74
  6. Step 6: Final answer
    x = 4,349.08

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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.