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Finding the Fourth Proportional to 10,060.80, 13,852.80 and 8,361.60

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Solution

The fourth proportional to 10,060.80, 13,852.80 and 8,361.60 is: 11,513.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,060.80 : 13,852.80 = 8,361.60 : x
  2. Step 2: Convert to fraction form
    10,060.80/13,852.80 = 8,361.60/x
  3. Step 3: Cross multiply
    10,060.80x = 13,852.80 × 8,361.60
  4. Step 4: Simplify right side
    10,060.80x = 115,831,572.48
  5. Step 5: Solve for x
    x = 115,831,572.48/10,060.80
  6. Step 6: Final answer
    x = 11,513.16

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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.