Home / 15,702.27-21,668.89-8,628.54

Finding the Fourth Proportional to 15,702.27, 21,668.89 and 8,628.54

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Solution

The fourth proportional to 15,702.27, 21,668.89 and 8,628.54 is: 11,907.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,702.27 : 21,668.89 = 8,628.54 : x
  2. Step 2: Convert to fraction form
    15,702.27/21,668.89 = 8,628.54/x
  3. Step 3: Cross multiply
    15,702.27x = 21,668.89 × 8,628.54
  4. Step 4: Simplify right side
    15,702.27x = 186,970,862.55
  5. Step 5: Solve for x
    x = 186,970,862.55/15,702.27
  6. Step 6: Final answer
    x = 11,907.25

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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.