Home / 9,439.21-14,160.53-3,889.47

Finding the Fourth Proportional to 9,439.21, 14,160.53 and 3,889.47

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Solution

The fourth proportional to 9,439.21, 14,160.53 and 3,889.47 is: 5,834.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.21 : 14,160.53 = 3,889.47 : x
  2. Step 2: Convert to fraction form
    9,439.21/14,160.53 = 3,889.47/x
  3. Step 3: Cross multiply
    9,439.21x = 14,160.53 × 3,889.47
  4. Step 4: Simplify right side
    9,439.21x = 55,076,956.62
  5. Step 5: Solve for x
    x = 55,076,956.62/9,439.21
  6. Step 6: Final answer
    x = 5,834.91

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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.