Home / 12,412.63-18,616.74-3,528.55

Finding the Fourth Proportional to 12,412.63, 18,616.74 and 3,528.55

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Solution

The fourth proportional to 12,412.63, 18,616.74 and 3,528.55 is: 5,292.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,412.63 : 18,616.74 = 3,528.55 : x
  2. Step 2: Convert to fraction form
    12,412.63/18,616.74 = 3,528.55/x
  3. Step 3: Cross multiply
    12,412.63x = 18,616.74 × 3,528.55
  4. Step 4: Simplify right side
    12,412.63x = 65,690,097.93
  5. Step 5: Solve for x
    x = 65,690,097.93/12,412.63
  6. Step 6: Final answer
    x = 5,292.20

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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.