Home / 14,523.36-21,640.74-13,818.12

Finding the Fourth Proportional to 14,523.36, 21,640.74 and 13,818.12

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Solution

The fourth proportional to 14,523.36, 21,640.74 and 13,818.12 is: 20,589.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,523.36 : 21,640.74 = 13,818.12 : x
  2. Step 2: Convert to fraction form
    14,523.36/21,640.74 = 13,818.12/x
  3. Step 3: Cross multiply
    14,523.36x = 21,640.74 × 13,818.12
  4. Step 4: Simplify right side
    14,523.36x = 299,034,342.21
  5. Step 5: Solve for x
    x = 299,034,342.21/14,523.36
  6. Step 6: Final answer
    x = 20,589.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.