Home / 12,192.93-18,266.31-10,530.81

Finding the Fourth Proportional to 12,192.93, 18,266.31 and 10,530.81

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Solution

The fourth proportional to 12,192.93, 18,266.31 and 10,530.81 is: 15,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,192.93 : 18,266.31 = 10,530.81 : x
  2. Step 2: Convert to fraction form
    12,192.93/18,266.31 = 10,530.81/x
  3. Step 3: Cross multiply
    12,192.93x = 18,266.31 × 10,530.81
  4. Step 4: Simplify right side
    12,192.93x = 192,359,040.01
  5. Step 5: Solve for x
    x = 192,359,040.01/12,192.93
  6. Step 6: Final answer
    x = 15,776.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.