Home / 8,429.20-11,631.46-4,892.07

Finding the Fourth Proportional to 8,429.20, 11,631.46 and 4,892.07

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Solution

The fourth proportional to 8,429.20, 11,631.46 and 4,892.07 is: 6,750.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,429.20 : 11,631.46 = 4,892.07 : x
  2. Step 2: Convert to fraction form
    8,429.20/11,631.46 = 4,892.07/x
  3. Step 3: Cross multiply
    8,429.20x = 11,631.46 × 4,892.07
  4. Step 4: Simplify right side
    8,429.20x = 56,901,916.52
  5. Step 5: Solve for x
    x = 56,901,916.52/8,429.20
  6. Step 6: Final answer
    x = 6,750.57

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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.