Home / 7,279.12-10,865.72-6,738.16

Finding the Fourth Proportional to 7,279.12, 10,865.72 and 6,738.16

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Solution

The fourth proportional to 7,279.12, 10,865.72 and 6,738.16 is: 10,058.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,279.12 : 10,865.72 = 6,738.16 : x
  2. Step 2: Convert to fraction form
    7,279.12/10,865.72 = 6,738.16/x
  3. Step 3: Cross multiply
    7,279.12x = 10,865.72 × 6,738.16
  4. Step 4: Simplify right side
    7,279.12x = 73,214,959.88
  5. Step 5: Solve for x
    x = 73,214,959.88/7,279.12
  6. Step 6: Final answer
    x = 10,058.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.