Home / 15,285.70-21,092.52-8,570.44

Finding the Fourth Proportional to 15,285.70, 21,092.52 and 8,570.44

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Solution

The fourth proportional to 15,285.70, 21,092.52 and 8,570.44 is: 11,826.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.70 : 21,092.52 = 8,570.44 : x
  2. Step 2: Convert to fraction form
    15,285.70/21,092.52 = 8,570.44/x
  3. Step 3: Cross multiply
    15,285.70x = 21,092.52 × 8,570.44
  4. Step 4: Simplify right side
    15,285.70x = 180,772,177.11
  5. Step 5: Solve for x
    x = 180,772,177.11/15,285.70
  6. Step 6: Final answer
    x = 11,826.23

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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.