Home / 15,273.48-21,076.74-8,558.58

Finding the Fourth Proportional to 15,273.48, 21,076.74 and 8,558.58

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Solution

The fourth proportional to 15,273.48, 21,076.74 and 8,558.58 is: 11,810.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.48 : 21,076.74 = 8,558.58 : x
  2. Step 2: Convert to fraction form
    15,273.48/21,076.74 = 8,558.58/x
  3. Step 3: Cross multiply
    15,273.48x = 21,076.74 × 8,558.58
  4. Step 4: Simplify right side
    15,273.48x = 180,386,965.43
  5. Step 5: Solve for x
    x = 180,386,965.43/15,273.48
  6. Step 6: Final answer
    x = 11,810.47

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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.