Home / 13,125.36-19,686.84-4,361.28

Finding the Fourth Proportional to 13,125.36, 19,686.84 and 4,361.28

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Solution

The fourth proportional to 13,125.36, 19,686.84 and 4,361.28 is: 6,541.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.36 : 19,686.84 = 4,361.28 : x
  2. Step 2: Convert to fraction form
    13,125.36/19,686.84 = 4,361.28/x
  3. Step 3: Cross multiply
    13,125.36x = 19,686.84 × 4,361.28
  4. Step 4: Simplify right side
    13,125.36x = 85,859,821.56
  5. Step 5: Solve for x
    x = 85,859,821.56/13,125.36
  6. Step 6: Final answer
    x = 6,541.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.