Home / 18,416.89-25,418.21-10,864.07

Finding the Fourth Proportional to 18,416.89, 25,418.21 and 10,864.07

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Solution

The fourth proportional to 18,416.89, 25,418.21 and 10,864.07 is: 14,994.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,416.89 : 25,418.21 = 10,864.07 : x
  2. Step 2: Convert to fraction form
    18,416.89/25,418.21 = 10,864.07/x
  3. Step 3: Cross multiply
    18,416.89x = 25,418.21 × 10,864.07
  4. Step 4: Simplify right side
    18,416.89x = 276,145,212.71
  5. Step 5: Solve for x
    x = 276,145,212.71/18,416.89
  6. Step 6: Final answer
    x = 14,994.13

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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.