Home / 14,508.27-21,762.41-3,978.40

Finding the Fourth Proportional to 14,508.27, 21,762.41 and 3,978.40

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Solution

The fourth proportional to 14,508.27, 21,762.41 and 3,978.40 is: 5,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,508.27 : 21,762.41 = 3,978.40 : x
  2. Step 2: Convert to fraction form
    14,508.27/21,762.41 = 3,978.40/x
  3. Step 3: Cross multiply
    14,508.27x = 21,762.41 × 3,978.40
  4. Step 4: Simplify right side
    14,508.27x = 86,579,571.94
  5. Step 5: Solve for x
    x = 86,579,571.94/14,508.27
  6. Step 6: Final answer
    x = 5,967.60

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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.