Home / 15,651.49-21,599.10-8,481.43

Finding the Fourth Proportional to 15,651.49, 21,599.10 and 8,481.43

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Solution

The fourth proportional to 15,651.49, 21,599.10 and 8,481.43 is: 11,704.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.49 : 21,599.10 = 8,481.43 : x
  2. Step 2: Convert to fraction form
    15,651.49/21,599.10 = 8,481.43/x
  3. Step 3: Cross multiply
    15,651.49x = 21,599.10 × 8,481.43
  4. Step 4: Simplify right side
    15,651.49x = 183,191,254.71
  5. Step 5: Solve for x
    x = 183,191,254.71/15,651.49
  6. Step 6: Final answer
    x = 11,704.40

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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.