Home / 13,125.36-19,685.36-3,762.87

Finding the Fourth Proportional to 13,125.36, 19,685.36 and 3,762.87

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Solution

The fourth proportional to 13,125.36, 19,685.36 and 3,762.87 is: 5,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,125.36 : 19,685.36 = 3,762.87 : x
  2. Step 2: Convert to fraction form
    13,125.36/19,685.36 = 3,762.87/x
  3. Step 3: Cross multiply
    13,125.36x = 19,685.36 × 3,762.87
  4. Step 4: Simplify right side
    13,125.36x = 74,073,431.77
  5. Step 5: Solve for x
    x = 74,073,431.77/13,125.36
  6. Step 6: Final answer
    x = 5,643.54

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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.