Home / 7,771.52-10,724.72-4,627.68

Finding the Fourth Proportional to 7,771.52, 10,724.72 and 4,627.68

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Solution

The fourth proportional to 7,771.52, 10,724.72 and 4,627.68 is: 6,386.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.52 : 10,724.72 = 4,627.68 : x
  2. Step 2: Convert to fraction form
    7,771.52/10,724.72 = 4,627.68/x
  3. Step 3: Cross multiply
    7,771.52x = 10,724.72 × 4,627.68
  4. Step 4: Simplify right side
    7,771.52x = 49,630,572.25
  5. Step 5: Solve for x
    x = 49,630,572.25/7,771.52
  6. Step 6: Final answer
    x = 6,386.21

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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.