Home / 14,490.21-20,000.16-8,206.23

Finding the Fourth Proportional to 14,490.21, 20,000.16 and 8,206.23

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Solution

The fourth proportional to 14,490.21, 20,000.16 and 8,206.23 is: 11,326.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.21 : 20,000.16 = 8,206.23 : x
  2. Step 2: Convert to fraction form
    14,490.21/20,000.16 = 8,206.23/x
  3. Step 3: Cross multiply
    14,490.21x = 20,000.16 × 8,206.23
  4. Step 4: Simplify right side
    14,490.21x = 164,125,913.00
  5. Step 5: Solve for x
    x = 164,125,913.00/14,490.21
  6. Step 6: Final answer
    x = 11,326.68

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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.