Home / 14,741.39-20,350.09-8,689.78

Finding the Fourth Proportional to 14,741.39, 20,350.09 and 8,689.78

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Solution

The fourth proportional to 14,741.39, 20,350.09 and 8,689.78 is: 11,996.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,741.39 : 20,350.09 = 8,689.78 : x
  2. Step 2: Convert to fraction form
    14,741.39/20,350.09 = 8,689.78/x
  3. Step 3: Cross multiply
    14,741.39x = 20,350.09 × 8,689.78
  4. Step 4: Simplify right side
    14,741.39x = 176,837,792.50
  5. Step 5: Solve for x
    x = 176,837,792.50/14,741.39
  6. Step 6: Final answer
    x = 11,996.00

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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.