Home / 9,376.36-12,939.34-5,397.46

Finding the Fourth Proportional to 9,376.36, 12,939.34 and 5,397.46

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Solution

The fourth proportional to 9,376.36, 12,939.34 and 5,397.46 is: 7,448.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.36 : 12,939.34 = 5,397.46 : x
  2. Step 2: Convert to fraction form
    9,376.36/12,939.34 = 5,397.46/x
  3. Step 3: Cross multiply
    9,376.36x = 12,939.34 × 5,397.46
  4. Step 4: Simplify right side
    9,376.36x = 69,839,570.08
  5. Step 5: Solve for x
    x = 69,839,570.08/9,376.36
  6. Step 6: Final answer
    x = 7,448.47

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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.