Home / 7,860.21-10,842.35-4,835.85

Finding the Fourth Proportional to 7,860.21, 10,842.35 and 4,835.85

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Solution

The fourth proportional to 7,860.21, 10,842.35 and 4,835.85 is: 6,670.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.21 : 10,842.35 = 4,835.85 : x
  2. Step 2: Convert to fraction form
    7,860.21/10,842.35 = 4,835.85/x
  3. Step 3: Cross multiply
    7,860.21x = 10,842.35 × 4,835.85
  4. Step 4: Simplify right side
    7,860.21x = 52,431,972.20
  5. Step 5: Solve for x
    x = 52,431,972.20/7,860.21
  6. Step 6: Final answer
    x = 6,670.55

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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.