Home / 9,821-13,550.10-5,840.12

Finding the Fourth Proportional to 9,821, 13,550.10 and 5,840.12

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Solution

The fourth proportional to 9,821, 13,550.10 and 5,840.12 is: 8,057.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,821 : 13,550.10 = 5,840.12 : x
  2. Step 2: Convert to fraction form
    9,821/13,550.10 = 5,840.12/x
  3. Step 3: Cross multiply
    9,821x = 13,550.10 × 5,840.12
  4. Step 4: Simplify right side
    9,821x = 79,134,210.01
  5. Step 5: Solve for x
    x = 79,134,210.01/9,821
  6. Step 6: Final answer
    x = 8,057.65

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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.