Home / 7,226.19-9,976.91-4,678.74

Finding the Fourth Proportional to 7,226.19, 9,976.91 and 4,678.74

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Solution

The fourth proportional to 7,226.19, 9,976.91 and 4,678.74 is: 6,459.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,226.19 : 9,976.91 = 4,678.74 : x
  2. Step 2: Convert to fraction form
    7,226.19/9,976.91 = 4,678.74/x
  3. Step 3: Cross multiply
    7,226.19x = 9,976.91 × 4,678.74
  4. Step 4: Simplify right side
    7,226.19x = 46,679,344.50
  5. Step 5: Solve for x
    x = 46,679,344.50/7,226.19
  6. Step 6: Final answer
    x = 6,459.74

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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.