Home / 10,427.31-14,408.42-8,206.29

Finding the Fourth Proportional to 10,427.31, 14,408.42 and 8,206.29

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Solution

The fourth proportional to 10,427.31, 14,408.42 and 8,206.29 is: 11,339.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,427.31 : 14,408.42 = 8,206.29 : x
  2. Step 2: Convert to fraction form
    10,427.31/14,408.42 = 8,206.29/x
  3. Step 3: Cross multiply
    10,427.31x = 14,408.42 × 8,206.29
  4. Step 4: Simplify right side
    10,427.31x = 118,239,631.93
  5. Step 5: Solve for x
    x = 118,239,631.93/10,427.31
  6. Step 6: Final answer
    x = 11,339.42

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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.