Home / 15,336.83-21,165.42-8,622.33

Finding the Fourth Proportional to 15,336.83, 21,165.42 and 8,622.33

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Solution

The fourth proportional to 15,336.83, 21,165.42 and 8,622.33 is: 11,899.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336.83 : 21,165.42 = 8,622.33 : x
  2. Step 2: Convert to fraction form
    15,336.83/21,165.42 = 8,622.33/x
  3. Step 3: Cross multiply
    15,336.83x = 21,165.42 × 8,622.33
  4. Step 4: Simplify right side
    15,336.83x = 182,495,235.83
  5. Step 5: Solve for x
    x = 182,495,235.83/15,336.83
  6. Step 6: Final answer
    x = 11,899.15

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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.