Home / 9,940.78-14,914.95-4,102.30

Finding the Fourth Proportional to 9,940.78, 14,914.95 and 4,102.30

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Solution

The fourth proportional to 9,940.78, 14,914.95 and 4,102.30 is: 6,155.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,940.78 : 14,914.95 = 4,102.30 : x
  2. Step 2: Convert to fraction form
    9,940.78/14,914.95 = 4,102.30/x
  3. Step 3: Cross multiply
    9,940.78x = 14,914.95 × 4,102.30
  4. Step 4: Simplify right side
    9,940.78x = 61,185,599.39
  5. Step 5: Solve for x
    x = 61,185,599.39/9,940.78
  6. Step 6: Final answer
    x = 6,155.01

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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.