Home / 7,864.75-10,853.36-4,328.16

Finding the Fourth Proportional to 7,864.75, 10,853.36 and 4,328.16

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Solution

The fourth proportional to 7,864.75, 10,853.36 and 4,328.16 is: 5,972.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.75 : 10,853.36 = 4,328.16 : x
  2. Step 2: Convert to fraction form
    7,864.75/10,853.36 = 4,328.16/x
  3. Step 3: Cross multiply
    7,864.75x = 10,853.36 × 4,328.16
  4. Step 4: Simplify right side
    7,864.75x = 46,975,078.62
  5. Step 5: Solve for x
    x = 46,975,078.62/7,864.75
  6. Step 6: Final answer
    x = 5,972.86

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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.