Home / 16,332.68-22,515-12,743.64

Finding the Fourth Proportional to 16,332.68, 22,515 and 12,743.64

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Solution

The fourth proportional to 16,332.68, 22,515 and 12,743.64 is: 17,567.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,332.68 : 22,515 = 12,743.64 : x
  2. Step 2: Convert to fraction form
    16,332.68/22,515 = 12,743.64/x
  3. Step 3: Cross multiply
    16,332.68x = 22,515 × 12,743.64
  4. Step 4: Simplify right side
    16,332.68x = 286,923,054.60
  5. Step 5: Solve for x
    x = 286,923,054.60/16,332.68
  6. Step 6: Final answer
    x = 17,567.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.