Home / 6,423.60-9,643.20-4,083.60

Finding the Fourth Proportional to 6,423.60, 9,643.20 and 4,083.60

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Solution

The fourth proportional to 6,423.60, 9,643.20 and 4,083.60 is: 6,130.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,423.60 : 9,643.20 = 4,083.60 : x
  2. Step 2: Convert to fraction form
    6,423.60/9,643.20 = 4,083.60/x
  3. Step 3: Cross multiply
    6,423.60x = 9,643.20 × 4,083.60
  4. Step 4: Simplify right side
    6,423.60x = 39,378,971.52
  5. Step 5: Solve for x
    x = 39,378,971.52/6,423.60
  6. Step 6: Final answer
    x = 6,130.36

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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.