Home / 7,943.10-11,913.72-2,100.16

Finding the Fourth Proportional to 7,943.10, 11,913.72 and 2,100.16

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Solution

The fourth proportional to 7,943.10, 11,913.72 and 2,100.16 is: 3,150.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,943.10 : 11,913.72 = 2,100.16 : x
  2. Step 2: Convert to fraction form
    7,943.10/11,913.72 = 2,100.16/x
  3. Step 3: Cross multiply
    7,943.10x = 11,913.72 × 2,100.16
  4. Step 4: Simplify right side
    7,943.10x = 25,020,725.21
  5. Step 5: Solve for x
    x = 25,020,725.21/7,943.10
  6. Step 6: Final answer
    x = 3,150.00

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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.