Home / 13,851.46-19,115.49-8,543.26

Finding the Fourth Proportional to 13,851.46, 19,115.49 and 8,543.26

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Solution

The fourth proportional to 13,851.46, 19,115.49 and 8,543.26 is: 11,789.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,851.46 : 19,115.49 = 8,543.26 : x
  2. Step 2: Convert to fraction form
    13,851.46/19,115.49 = 8,543.26/x
  3. Step 3: Cross multiply
    13,851.46x = 19,115.49 × 8,543.26
  4. Step 4: Simplify right side
    13,851.46x = 163,308,601.10
  5. Step 5: Solve for x
    x = 163,308,601.10/13,851.46
  6. Step 6: Final answer
    x = 11,789.99

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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.