Home / 9,162.44-12,643.28-5,129.05

Finding the Fourth Proportional to 9,162.44, 12,643.28 and 5,129.05

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Solution

The fourth proportional to 9,162.44, 12,643.28 and 5,129.05 is: 7,077.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,162.44 : 12,643.28 = 5,129.05 : x
  2. Step 2: Convert to fraction form
    9,162.44/12,643.28 = 5,129.05/x
  3. Step 3: Cross multiply
    9,162.44x = 12,643.28 × 5,129.05
  4. Step 4: Simplify right side
    9,162.44x = 64,848,015.28
  5. Step 5: Solve for x
    x = 64,848,015.28/9,162.44
  6. Step 6: Final answer
    x = 7,077.59

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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.