Home / 15,285.82-21,095.31-8,573.60

Finding the Fourth Proportional to 15,285.82, 21,095.31 and 8,573.60

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Solution

The fourth proportional to 15,285.82, 21,095.31 and 8,573.60 is: 11,832.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.82 : 21,095.31 = 8,573.60 : x
  2. Step 2: Convert to fraction form
    15,285.82/21,095.31 = 8,573.60/x
  3. Step 3: Cross multiply
    15,285.82x = 21,095.31 × 8,573.60
  4. Step 4: Simplify right side
    15,285.82x = 180,862,749.82
  5. Step 5: Solve for x
    x = 180,862,749.82/15,285.82
  6. Step 6: Final answer
    x = 11,832.06

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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.