Home / 8,429.20-12,646.52-2,586.96

Finding the Fourth Proportional to 8,429.20, 12,646.52 and 2,586.96

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Solution

The fourth proportional to 8,429.20, 12,646.52 and 2,586.96 is: 3,881.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.20 : 12,646.52 = 2,586.96 : x
  2. Step 2: Convert to fraction form
    8,429.20/12,646.52 = 2,586.96/x
  3. Step 3: Cross multiply
    8,429.20x = 12,646.52 × 2,586.96
  4. Step 4: Simplify right side
    8,429.20x = 32,716,041.38
  5. Step 5: Solve for x
    x = 32,716,041.38/8,429.20
  6. Step 6: Final answer
    x = 3,881.27

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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.