Home / 19,143.02-26,417.40-11,183.78

Finding the Fourth Proportional to 19,143.02, 26,417.40 and 11,183.78

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Solution

The fourth proportional to 19,143.02, 26,417.40 and 11,183.78 is: 15,433.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,143.02 : 26,417.40 = 11,183.78 : x
  2. Step 2: Convert to fraction form
    19,143.02/26,417.40 = 11,183.78/x
  3. Step 3: Cross multiply
    19,143.02x = 26,417.40 × 11,183.78
  4. Step 4: Simplify right side
    19,143.02x = 295,446,389.77
  5. Step 5: Solve for x
    x = 295,446,389.77/19,143.02
  6. Step 6: Final answer
    x = 15,433.64

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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.