Home / 15,887.02-21,924.26-8,813.60

Finding the Fourth Proportional to 15,887.02, 21,924.26 and 8,813.60

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Solution

The fourth proportional to 15,887.02, 21,924.26 and 8,813.60 is: 12,162.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,887.02 : 21,924.26 = 8,813.60 : x
  2. Step 2: Convert to fraction form
    15,887.02/21,924.26 = 8,813.60/x
  3. Step 3: Cross multiply
    15,887.02x = 21,924.26 × 8,813.60
  4. Step 4: Simplify right side
    15,887.02x = 193,231,657.94
  5. Step 5: Solve for x
    x = 193,231,657.94/15,887.02
  6. Step 6: Final answer
    x = 12,162.86

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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.