Home / 18,829.20-25,962.96-12,864.24

Finding the Fourth Proportional to 18,829.20, 25,962.96 and 12,864.24

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Solution

The fourth proportional to 18,829.20, 25,962.96 and 12,864.24 is: 17,738.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,829.20 : 25,962.96 = 12,864.24 : x
  2. Step 2: Convert to fraction form
    18,829.20/25,962.96 = 12,864.24/x
  3. Step 3: Cross multiply
    18,829.20x = 25,962.96 × 12,864.24
  4. Step 4: Simplify right side
    18,829.20x = 333,993,748.55
  5. Step 5: Solve for x
    x = 333,993,748.55/18,829.20
  6. Step 6: Final answer
    x = 17,738.07

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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.