Home / 13,145.45-19,718.46-7,339.01

Finding the Fourth Proportional to 13,145.45, 19,718.46 and 7,339.01

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Solution

The fourth proportional to 13,145.45, 19,718.46 and 7,339.01 is: 11,008.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,145.45 : 19,718.46 = 7,339.01 : x
  2. Step 2: Convert to fraction form
    13,145.45/19,718.46 = 7,339.01/x
  3. Step 3: Cross multiply
    13,145.45x = 19,718.46 × 7,339.01
  4. Step 4: Simplify right side
    13,145.45x = 144,713,876.53
  5. Step 5: Solve for x
    x = 144,713,876.53/13,145.45
  6. Step 6: Final answer
    x = 11,008.67

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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.