Home / 13,006.56-19,509.81-3,145.84

Finding the Fourth Proportional to 13,006.56, 19,509.81 and 3,145.84

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Solution

The fourth proportional to 13,006.56, 19,509.81 and 3,145.84 is: 4,718.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,006.56 : 19,509.81 = 3,145.84 : x
  2. Step 2: Convert to fraction form
    13,006.56/19,509.81 = 3,145.84/x
  3. Step 3: Cross multiply
    13,006.56x = 19,509.81 × 3,145.84
  4. Step 4: Simplify right side
    13,006.56x = 61,374,697.81
  5. Step 5: Solve for x
    x = 61,374,697.81/13,006.56
  6. Step 6: Final answer
    x = 4,718.75

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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.