Home / 15,336.99-21,165.71-8,622.50

Finding the Fourth Proportional to 15,336.99, 21,165.71 and 8,622.50

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Solution

The fourth proportional to 15,336.99, 21,165.71 and 8,622.50 is: 11,899.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,336.99 : 21,165.71 = 8,622.50 : x
  2. Step 2: Convert to fraction form
    15,336.99/21,165.71 = 8,622.50/x
  3. Step 3: Cross multiply
    15,336.99x = 21,165.71 × 8,622.50
  4. Step 4: Simplify right side
    15,336.99x = 182,501,185.53
  5. Step 5: Solve for x
    x = 182,501,185.53/15,336.99
  6. Step 6: Final answer
    x = 11,899.41

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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.