Home / 9,376.24-12,939.60-5,397.36

Finding the Fourth Proportional to 9,376.24, 12,939.60 and 5,397.36

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Solution

The fourth proportional to 9,376.24, 12,939.60 and 5,397.36 is: 7,448.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.24 : 12,939.60 = 5,397.36 : x
  2. Step 2: Convert to fraction form
    9,376.24/12,939.60 = 5,397.36/x
  3. Step 3: Cross multiply
    9,376.24x = 12,939.60 × 5,397.36
  4. Step 4: Simplify right side
    9,376.24x = 69,839,679.46
  5. Step 5: Solve for x
    x = 69,839,679.46/9,376.24
  6. Step 6: Final answer
    x = 7,448.58

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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.