Home / 13,056.54-18,004.38-7,750.34

Finding the Fourth Proportional to 13,056.54, 18,004.38 and 7,750.34

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Solution

The fourth proportional to 13,056.54, 18,004.38 and 7,750.34 is: 10,687.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,056.54 : 18,004.38 = 7,750.34 : x
  2. Step 2: Convert to fraction form
    13,056.54/18,004.38 = 7,750.34/x
  3. Step 3: Cross multiply
    13,056.54x = 18,004.38 × 7,750.34
  4. Step 4: Simplify right side
    13,056.54x = 139,539,976.47
  5. Step 5: Solve for x
    x = 139,539,976.47/13,056.54
  6. Step 6: Final answer
    x = 10,687.36

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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.