Home / 10,076.90-13,905.80-5,600.54

Finding the Fourth Proportional to 10,076.90, 13,905.80 and 5,600.54

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Solution

The fourth proportional to 10,076.90, 13,905.80 and 5,600.54 is: 7,728.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.90 : 13,905.80 = 5,600.54 : x
  2. Step 2: Convert to fraction form
    10,076.90/13,905.80 = 5,600.54/x
  3. Step 3: Cross multiply
    10,076.90x = 13,905.80 × 5,600.54
  4. Step 4: Simplify right side
    10,076.90x = 77,879,989.13
  5. Step 5: Solve for x
    x = 77,879,989.13/10,076.90
  6. Step 6: Final answer
    x = 7,728.57

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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.