Home / 14,681.27-20,259.68-8,220.91

Finding the Fourth Proportional to 14,681.27, 20,259.68 and 8,220.91

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Solution

The fourth proportional to 14,681.27, 20,259.68 and 8,220.91 is: 11,344.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,681.27 : 20,259.68 = 8,220.91 : x
  2. Step 2: Convert to fraction form
    14,681.27/20,259.68 = 8,220.91/x
  3. Step 3: Cross multiply
    14,681.27x = 20,259.68 × 8,220.91
  4. Step 4: Simplify right side
    14,681.27x = 166,552,964.80
  5. Step 5: Solve for x
    x = 166,552,964.80/14,681.27
  6. Step 6: Final answer
    x = 11,344.59

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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.