Home / 18,302.72-25,278.50-12,323.99

Finding the Fourth Proportional to 18,302.72, 25,278.50 and 12,323.99

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Solution

The fourth proportional to 18,302.72, 25,278.50 and 12,323.99 is: 17,021.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,302.72 : 25,278.50 = 12,323.99 : x
  2. Step 2: Convert to fraction form
    18,302.72/25,278.50 = 12,323.99/x
  3. Step 3: Cross multiply
    18,302.72x = 25,278.50 × 12,323.99
  4. Step 4: Simplify right side
    18,302.72x = 311,532,075.22
  5. Step 5: Solve for x
    x = 311,532,075.22/18,302.72
  6. Step 6: Final answer
    x = 17,021.09

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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.