Home / 8,429.38-11,631.69-4,652.71

Finding the Fourth Proportional to 8,429.38, 11,631.69 and 4,652.71

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Solution

The fourth proportional to 8,429.38, 11,631.69 and 4,652.71 is: 6,420.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.38 : 11,631.69 = 4,652.71 : x
  2. Step 2: Convert to fraction form
    8,429.38/11,631.69 = 4,652.71/x
  3. Step 3: Cross multiply
    8,429.38x = 11,631.69 × 4,652.71
  4. Step 4: Simplify right side
    8,429.38x = 54,118,851.30
  5. Step 5: Solve for x
    x = 54,118,851.30/8,429.38
  6. Step 6: Final answer
    x = 6,420.27

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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.