Home / 8,389.96-12,586.80-2,842.84

Finding the Fourth Proportional to 8,389.96, 12,586.80 and 2,842.84

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Solution

The fourth proportional to 8,389.96, 12,586.80 and 2,842.84 is: 4,264.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,389.96 : 12,586.80 = 2,842.84 : x
  2. Step 2: Convert to fraction form
    8,389.96/12,586.80 = 2,842.84/x
  3. Step 3: Cross multiply
    8,389.96x = 12,586.80 × 2,842.84
  4. Step 4: Simplify right side
    8,389.96x = 35,782,258.51
  5. Step 5: Solve for x
    x = 35,782,258.51/8,389.96
  6. Step 6: Final answer
    x = 4,264.89

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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.