Home / 8,445.96-12,664.60-2,897.81

Finding the Fourth Proportional to 8,445.96, 12,664.60 and 2,897.81

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Solution

The fourth proportional to 8,445.96, 12,664.60 and 2,897.81 is: 4,345.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.96 : 12,664.60 = 2,897.81 : x
  2. Step 2: Convert to fraction form
    8,445.96/12,664.60 = 2,897.81/x
  3. Step 3: Cross multiply
    8,445.96x = 12,664.60 × 2,897.81
  4. Step 4: Simplify right side
    8,445.96x = 36,699,604.53
  5. Step 5: Solve for x
    x = 36,699,604.53/8,445.96
  6. Step 6: Final answer
    x = 4,345.23

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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.