Home / 7,124.90-9,816.26-4,969.37

Finding the Fourth Proportional to 7,124.90, 9,816.26 and 4,969.37

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Solution

The fourth proportional to 7,124.90, 9,816.26 and 4,969.37 is: 6,846.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,124.90 : 9,816.26 = 4,969.37 : x
  2. Step 2: Convert to fraction form
    7,124.90/9,816.26 = 4,969.37/x
  3. Step 3: Cross multiply
    7,124.90x = 9,816.26 × 4,969.37
  4. Step 4: Simplify right side
    7,124.90x = 48,780,627.65
  5. Step 5: Solve for x
    x = 48,780,627.65/7,124.90
  6. Step 6: Final answer
    x = 6,846.50

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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.