Home / 15,283.25-21,090.56-8,569.43

Finding the Fourth Proportional to 15,283.25, 21,090.56 and 8,569.43

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Solution

The fourth proportional to 15,283.25, 21,090.56 and 8,569.43 is: 11,825.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,283.25 : 21,090.56 = 8,569.43 : x
  2. Step 2: Convert to fraction form
    15,283.25/21,090.56 = 8,569.43/x
  3. Step 3: Cross multiply
    15,283.25x = 21,090.56 × 8,569.43
  4. Step 4: Simplify right side
    15,283.25x = 180,733,929.28
  5. Step 5: Solve for x
    x = 180,733,929.28/15,283.25
  6. Step 6: Final answer
    x = 11,825.63

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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.