Home / 15,797.92-21,784.80-13,567.18

Finding the Fourth Proportional to 15,797.92, 21,784.80 and 13,567.18

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Solution

The fourth proportional to 15,797.92, 21,784.80 and 13,567.18 is: 18,708.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,797.92 : 21,784.80 = 13,567.18 : x
  2. Step 2: Convert to fraction form
    15,797.92/21,784.80 = 13,567.18/x
  3. Step 3: Cross multiply
    15,797.92x = 21,784.80 × 13,567.18
  4. Step 4: Simplify right side
    15,797.92x = 295,558,302.86
  5. Step 5: Solve for x
    x = 295,558,302.86/15,797.92
  6. Step 6: Final answer
    x = 18,708.68

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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.