Home / 14,387.76-19,861.26-9,674.78

Finding the Fourth Proportional to 14,387.76, 19,861.26 and 9,674.78

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Solution

The fourth proportional to 14,387.76, 19,861.26 and 9,674.78 is: 13,355.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,387.76 : 19,861.26 = 9,674.78 : x
  2. Step 2: Convert to fraction form
    14,387.76/19,861.26 = 9,674.78/x
  3. Step 3: Cross multiply
    14,387.76x = 19,861.26 × 9,674.78
  4. Step 4: Simplify right side
    14,387.76x = 192,153,321.02
  5. Step 5: Solve for x
    x = 192,153,321.02/14,387.76
  6. Step 6: Final answer
    x = 13,355.33

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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.