Home / 14,151.74-19,531.80-8,187.03

Finding the Fourth Proportional to 14,151.74, 19,531.80 and 8,187.03

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Solution

The fourth proportional to 14,151.74, 19,531.80 and 8,187.03 is: 11,299.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,151.74 : 19,531.80 = 8,187.03 : x
  2. Step 2: Convert to fraction form
    14,151.74/19,531.80 = 8,187.03/x
  3. Step 3: Cross multiply
    14,151.74x = 19,531.80 × 8,187.03
  4. Step 4: Simplify right side
    14,151.74x = 159,907,432.55
  5. Step 5: Solve for x
    x = 159,907,432.55/14,151.74
  6. Step 6: Final answer
    x = 11,299.49

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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.