Home / 14,810.37-20,439.57-8,438.91

Finding the Fourth Proportional to 14,810.37, 20,439.57 and 8,438.91

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Solution

The fourth proportional to 14,810.37, 20,439.57 and 8,438.91 is: 11,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,810.37 : 20,439.57 = 8,438.91 : x
  2. Step 2: Convert to fraction form
    14,810.37/20,439.57 = 8,438.91/x
  3. Step 3: Cross multiply
    14,810.37x = 20,439.57 × 8,438.91
  4. Step 4: Simplify right side
    14,810.37x = 172,487,589.47
  5. Step 5: Solve for x
    x = 172,487,589.47/14,810.37
  6. Step 6: Final answer
    x = 11,646.41

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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.