Home / 7,118.37-10,678.77-4,345.74

Finding the Fourth Proportional to 7,118.37, 10,678.77 and 4,345.74

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Solution

The fourth proportional to 7,118.37, 10,678.77 and 4,345.74 is: 6,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,118.37 : 10,678.77 = 4,345.74 : x
  2. Step 2: Convert to fraction form
    7,118.37/10,678.77 = 4,345.74/x
  3. Step 3: Cross multiply
    7,118.37x = 10,678.77 × 4,345.74
  4. Step 4: Simplify right side
    7,118.37x = 46,407,157.94
  5. Step 5: Solve for x
    x = 46,407,157.94/7,118.37
  6. Step 6: Final answer
    x = 6,519.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.