Home / 14,213.84-19,615.41-7,840.62

Finding the Fourth Proportional to 14,213.84, 19,615.41 and 7,840.62

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Solution

The fourth proportional to 14,213.84, 19,615.41 and 7,840.62 is: 10,820.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,213.84 : 19,615.41 = 7,840.62 : x
  2. Step 2: Convert to fraction form
    14,213.84/19,615.41 = 7,840.62/x
  3. Step 3: Cross multiply
    14,213.84x = 19,615.41 × 7,840.62
  4. Step 4: Simplify right side
    14,213.84x = 153,796,975.95
  5. Step 5: Solve for x
    x = 153,796,975.95/14,213.84
  6. Step 6: Final answer
    x = 10,820.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.