Home / 7,820.36-11,724.08-3,658.32

Finding the Fourth Proportional to 7,820.36, 11,724.08 and 3,658.32

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Solution

The fourth proportional to 7,820.36, 11,724.08 and 3,658.32 is: 5,484.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,820.36 : 11,724.08 = 3,658.32 : x
  2. Step 2: Convert to fraction form
    7,820.36/11,724.08 = 3,658.32/x
  3. Step 3: Cross multiply
    7,820.36x = 11,724.08 × 3,658.32
  4. Step 4: Simplify right side
    7,820.36x = 42,890,436.35
  5. Step 5: Solve for x
    x = 42,890,436.35/7,820.36
  6. Step 6: Final answer
    x = 5,484.46

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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.