Home / 14,216.39-21,280.85-9,275.39

Finding the Fourth Proportional to 14,216.39, 21,280.85 and 9,275.39

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Solution

The fourth proportional to 14,216.39, 21,280.85 and 9,275.39 is: 13,884.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,216.39 : 21,280.85 = 9,275.39 : x
  2. Step 2: Convert to fraction form
    14,216.39/21,280.85 = 9,275.39/x
  3. Step 3: Cross multiply
    14,216.39x = 21,280.85 × 9,275.39
  4. Step 4: Simplify right side
    14,216.39x = 197,388,224.89
  5. Step 5: Solve for x
    x = 197,388,224.89/14,216.39
  6. Step 6: Final answer
    x = 13,884.55

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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.