Home / 7,865.15-10,853.91-4,328.35

Finding the Fourth Proportional to 7,865.15, 10,853.91 and 4,328.35

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Solution

The fourth proportional to 7,865.15, 10,853.91 and 4,328.35 is: 5,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,865.15 : 10,853.91 = 4,328.35 : x
  2. Step 2: Convert to fraction form
    7,865.15/10,853.91 = 4,328.35/x
  3. Step 3: Cross multiply
    7,865.15x = 10,853.91 × 4,328.35
  4. Step 4: Simplify right side
    7,865.15x = 46,979,456.26
  5. Step 5: Solve for x
    x = 46,979,456.26/7,865.15
  6. Step 6: Final answer
    x = 5,973.11

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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.