Home / 10,355.88-14,291.19-5,640.06

Finding the Fourth Proportional to 10,355.88, 14,291.19 and 5,640.06

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Solution

The fourth proportional to 10,355.88, 14,291.19 and 5,640.06 is: 7,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,355.88 : 14,291.19 = 5,640.06 : x
  2. Step 2: Convert to fraction form
    10,355.88/14,291.19 = 5,640.06/x
  3. Step 3: Cross multiply
    10,355.88x = 14,291.19 × 5,640.06
  4. Step 4: Simplify right side
    10,355.88x = 80,603,169.07
  5. Step 5: Solve for x
    x = 80,603,169.07/10,355.88
  6. Step 6: Final answer
    x = 7,783.32

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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.