Home / 12,439.53-18,659.84-4,644.09

Finding the Fourth Proportional to 12,439.53, 18,659.84 and 4,644.09

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Solution

The fourth proportional to 12,439.53, 18,659.84 and 4,644.09 is: 6,966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,439.53 : 18,659.84 = 4,644.09 : x
  2. Step 2: Convert to fraction form
    12,439.53/18,659.84 = 4,644.09/x
  3. Step 3: Cross multiply
    12,439.53x = 18,659.84 × 4,644.09
  4. Step 4: Simplify right side
    12,439.53x = 86,657,953.13
  5. Step 5: Solve for x
    x = 86,657,953.13/12,439.53
  6. Step 6: Final answer
    x = 6,966.34

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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.