Home / 14,168.99-19,519.37-9,912.10

Finding the Fourth Proportional to 14,168.99, 19,519.37 and 9,912.10

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Solution

The fourth proportional to 14,168.99, 19,519.37 and 9,912.10 is: 13,655.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,168.99 : 19,519.37 = 9,912.10 : x
  2. Step 2: Convert to fraction form
    14,168.99/19,519.37 = 9,912.10/x
  3. Step 3: Cross multiply
    14,168.99x = 19,519.37 × 9,912.10
  4. Step 4: Simplify right side
    14,168.99x = 193,477,947.38
  5. Step 5: Solve for x
    x = 193,477,947.38/14,168.99
  6. Step 6: Final answer
    x = 13,655.03

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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.