Home / 15,285.34-21,094.64-8,570.43

Finding the Fourth Proportional to 15,285.34, 21,094.64 and 8,570.43

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Solution

The fourth proportional to 15,285.34, 21,094.64 and 8,570.43 is: 11,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.34 : 21,094.64 = 8,570.43 : x
  2. Step 2: Convert to fraction form
    15,285.34/21,094.64 = 8,570.43/x
  3. Step 3: Cross multiply
    15,285.34x = 21,094.64 × 8,570.43
  4. Step 4: Simplify right side
    15,285.34x = 180,790,229.54
  5. Step 5: Solve for x
    x = 180,790,229.54/15,285.34
  6. Step 6: Final answer
    x = 11,827.69

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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.