Home / 10,169.31-14,038.75-6,394.56

Finding the Fourth Proportional to 10,169.31, 14,038.75 and 6,394.56

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Solution

The fourth proportional to 10,169.31, 14,038.75 and 6,394.56 is: 8,827.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,169.31 : 14,038.75 = 6,394.56 : x
  2. Step 2: Convert to fraction form
    10,169.31/14,038.75 = 6,394.56/x
  3. Step 3: Cross multiply
    10,169.31x = 14,038.75 × 6,394.56
  4. Step 4: Simplify right side
    10,169.31x = 89,771,584.55
  5. Step 5: Solve for x
    x = 89,771,584.55/10,169.31
  6. Step 6: Final answer
    x = 8,827.69

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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.