Home / 15,644.07-21,588.71-8,570.57

Finding the Fourth Proportional to 15,644.07, 21,588.71 and 8,570.57

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Solution

The fourth proportional to 15,644.07, 21,588.71 and 8,570.57 is: 11,827.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,644.07 : 21,588.71 = 8,570.57 : x
  2. Step 2: Convert to fraction form
    15,644.07/21,588.71 = 8,570.57/x
  3. Step 3: Cross multiply
    15,644.07x = 21,588.71 × 8,570.57
  4. Step 4: Simplify right side
    15,644.07x = 185,027,399.47
  5. Step 5: Solve for x
    x = 185,027,399.47/15,644.07
  6. Step 6: Final answer
    x = 11,827.32

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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.