Home / 15,285.34-21,094.74-8,571.37

Finding the Fourth Proportional to 15,285.34, 21,094.74 and 8,571.37

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Solution

The fourth proportional to 15,285.34, 21,094.74 and 8,571.37 is: 11,829.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,285.34 : 21,094.74 = 8,571.37 : x
  2. Step 2: Convert to fraction form
    15,285.34/21,094.74 = 8,571.37/x
  3. Step 3: Cross multiply
    15,285.34x = 21,094.74 × 8,571.37
  4. Step 4: Simplify right side
    15,285.34x = 180,810,821.59
  5. Step 5: Solve for x
    x = 180,810,821.59/15,285.34
  6. Step 6: Final answer
    x = 11,829.03

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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.