Home / 9,943.66-13,722-5,406.22

Finding the Fourth Proportional to 9,943.66, 13,722 and 5,406.22

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Solution

The fourth proportional to 9,943.66, 13,722 and 5,406.22 is: 7,460.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,943.66 : 13,722 = 5,406.22 : x
  2. Step 2: Convert to fraction form
    9,943.66/13,722 = 5,406.22/x
  3. Step 3: Cross multiply
    9,943.66x = 13,722 × 5,406.22
  4. Step 4: Simplify right side
    9,943.66x = 74,184,150.84
  5. Step 5: Solve for x
    x = 74,184,150.84/9,943.66
  6. Step 6: Final answer
    x = 7,460.45

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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.