Home / 18,771.50-25,904.67-10,389.26

Finding the Fourth Proportional to 18,771.50, 25,904.67 and 10,389.26

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Solution

The fourth proportional to 18,771.50, 25,904.67 and 10,389.26 is: 14,337.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,771.50 : 25,904.67 = 10,389.26 : x
  2. Step 2: Convert to fraction form
    18,771.50/25,904.67 = 10,389.26/x
  3. Step 3: Cross multiply
    18,771.50x = 25,904.67 × 10,389.26
  4. Step 4: Simplify right side
    18,771.50x = 269,130,351.84
  5. Step 5: Solve for x
    x = 269,130,351.84/18,771.50
  6. Step 6: Final answer
    x = 14,337.18

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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.