Home / 10,645.08-14,687.72-6,394.70

Finding the Fourth Proportional to 10,645.08, 14,687.72 and 6,394.70

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Solution

The fourth proportional to 10,645.08, 14,687.72 and 6,394.70 is: 8,823.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,645.08 : 14,687.72 = 6,394.70 : x
  2. Step 2: Convert to fraction form
    10,645.08/14,687.72 = 6,394.70/x
  3. Step 3: Cross multiply
    10,645.08x = 14,687.72 × 6,394.70
  4. Step 4: Simplify right side
    10,645.08x = 93,923,563.08
  5. Step 5: Solve for x
    x = 93,923,563.08/10,645.08
  6. Step 6: Final answer
    x = 8,823.19

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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.