Home / 7,629.09-11,423.61-6,140.40

Finding the Fourth Proportional to 7,629.09, 11,423.61 and 6,140.40

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Solution

The fourth proportional to 7,629.09, 11,423.61 and 6,140.40 is: 9,194.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.09 : 11,423.61 = 6,140.40 : x
  2. Step 2: Convert to fraction form
    7,629.09/11,423.61 = 6,140.40/x
  3. Step 3: Cross multiply
    7,629.09x = 11,423.61 × 6,140.40
  4. Step 4: Simplify right side
    7,629.09x = 70,145,534.84
  5. Step 5: Solve for x
    x = 70,145,534.84/7,629.09
  6. Step 6: Final answer
    x = 9,194.48

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1.5x scale

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.