Home / 10,522.65-15,786.14-3,126.45

Finding the Fourth Proportional to 10,522.65, 15,786.14 and 3,126.45

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Solution

The fourth proportional to 10,522.65, 15,786.14 and 3,126.45 is: 4,690.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,522.65 : 15,786.14 = 3,126.45 : x
  2. Step 2: Convert to fraction form
    10,522.65/15,786.14 = 3,126.45/x
  3. Step 3: Cross multiply
    10,522.65x = 15,786.14 × 3,126.45
  4. Step 4: Simplify right side
    10,522.65x = 49,354,577.40
  5. Step 5: Solve for x
    x = 49,354,577.40/10,522.65
  6. Step 6: Final answer
    x = 4,690.32

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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.