Home / 14,618.27-20,109.47-12,817.64

Finding the Fourth Proportional to 14,618.27, 20,109.47 and 12,817.64

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Solution

The fourth proportional to 14,618.27, 20,109.47 and 12,817.64 is: 17,632.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.27 : 20,109.47 = 12,817.64 : x
  2. Step 2: Convert to fraction form
    14,618.27/20,109.47 = 12,817.64/x
  3. Step 3: Cross multiply
    14,618.27x = 20,109.47 × 12,817.64
  4. Step 4: Simplify right side
    14,618.27x = 257,755,933.24
  5. Step 5: Solve for x
    x = 257,755,933.24/14,618.27
  6. Step 6: Final answer
    x = 17,632.45

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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.