Home / 8,439.55-11,644.74-4,900.87

Finding the Fourth Proportional to 8,439.55, 11,644.74 and 4,900.87

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Solution

The fourth proportional to 8,439.55, 11,644.74 and 4,900.87 is: 6,762.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.55 : 11,644.74 = 4,900.87 : x
  2. Step 2: Convert to fraction form
    8,439.55/11,644.74 = 4,900.87/x
  3. Step 3: Cross multiply
    8,439.55x = 11,644.74 × 4,900.87
  4. Step 4: Simplify right side
    8,439.55x = 57,069,356.92
  5. Step 5: Solve for x
    x = 57,069,356.92/8,439.55
  6. Step 6: Final answer
    x = 6,762.13

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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.