Home / 10,391.08-14,340-5,675.44

Finding the Fourth Proportional to 10,391.08, 14,340 and 5,675.44

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Solution

The fourth proportional to 10,391.08, 14,340 and 5,675.44 is: 7,832.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,391.08 : 14,340 = 5,675.44 : x
  2. Step 2: Convert to fraction form
    10,391.08/14,340 = 5,675.44/x
  3. Step 3: Cross multiply
    10,391.08x = 14,340 × 5,675.44
  4. Step 4: Simplify right side
    10,391.08x = 81,385,809.60
  5. Step 5: Solve for x
    x = 81,385,809.60/10,391.08
  6. Step 6: Final answer
    x = 7,832.28

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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.