Home / 11,123.24-15,351.39-6,407.42

Finding the Fourth Proportional to 11,123.24, 15,351.39 and 6,407.42

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Solution

The fourth proportional to 11,123.24, 15,351.39 and 6,407.42 is: 8,843.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,123.24 : 15,351.39 = 6,407.42 : x
  2. Step 2: Convert to fraction form
    11,123.24/15,351.39 = 6,407.42/x
  3. Step 3: Cross multiply
    11,123.24x = 15,351.39 × 6,407.42
  4. Step 4: Simplify right side
    11,123.24x = 98,362,803.31
  5. Step 5: Solve for x
    x = 98,362,803.31/11,123.24
  6. Step 6: Final answer
    x = 8,843.00

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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.