Home / 7,629.40-11,416.29-6,300.80

Finding the Fourth Proportional to 7,629.40, 11,416.29 and 6,300.80

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Solution

The fourth proportional to 7,629.40, 11,416.29 and 6,300.80 is: 9,428.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.40 : 11,416.29 = 6,300.80 : x
  2. Step 2: Convert to fraction form
    7,629.40/11,416.29 = 6,300.80/x
  3. Step 3: Cross multiply
    7,629.40x = 11,416.29 × 6,300.80
  4. Step 4: Simplify right side
    7,629.40x = 71,931,760.03
  5. Step 5: Solve for x
    x = 71,931,760.03/7,629.40
  6. Step 6: Final answer
    x = 9,428.23

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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.