Home / 13,660.64-18,852.00-7,611.29

Finding the Fourth Proportional to 13,660.64, 18,852.00 and 7,611.29

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Solution

The fourth proportional to 13,660.64, 18,852.00 and 7,611.29 is: 10,503.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.64 : 18,852.00 = 7,611.29 : x
  2. Step 2: Convert to fraction form
    13,660.64/18,852.00 = 7,611.29/x
  3. Step 3: Cross multiply
    13,660.64x = 18,852.00 × 7,611.29
  4. Step 4: Simplify right side
    13,660.64x = 143,487,973.36
  5. Step 5: Solve for x
    x = 143,487,973.36/13,660.64
  6. Step 6: Final answer
    x = 10,503.75

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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.