Home / 18,822.48-25,975.16-12,853.99

Finding the Fourth Proportional to 18,822.48, 25,975.16 and 12,853.99

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Solution

The fourth proportional to 18,822.48, 25,975.16 and 12,853.99 is: 17,738.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822.48 : 25,975.16 = 12,853.99 : x
  2. Step 2: Convert to fraction form
    18,822.48/25,975.16 = 12,853.99/x
  3. Step 3: Cross multiply
    18,822.48x = 25,975.16 × 12,853.99
  4. Step 4: Simplify right side
    18,822.48x = 333,884,446.89
  5. Step 5: Solve for x
    x = 333,884,446.89/18,822.48
  6. Step 6: Final answer
    x = 17,738.60

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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.