Home / 15,571.02-21,488.62-8,857.26

Finding the Fourth Proportional to 15,571.02, 21,488.62 and 8,857.26

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Solution

The fourth proportional to 15,571.02, 21,488.62 and 8,857.26 is: 12,223.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,571.02 : 21,488.62 = 8,857.26 : x
  2. Step 2: Convert to fraction form
    15,571.02/21,488.62 = 8,857.26/x
  3. Step 3: Cross multiply
    15,571.02x = 21,488.62 × 8,857.26
  4. Step 4: Simplify right side
    15,571.02x = 190,330,294.38
  5. Step 5: Solve for x
    x = 190,330,294.38/15,571.02
  6. Step 6: Final answer
    x = 12,223.37

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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.