Home / 8,420.01-11,619.50-4,883.55

Finding the Fourth Proportional to 8,420.01, 11,619.50 and 4,883.55

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Solution

The fourth proportional to 8,420.01, 11,619.50 and 4,883.55 is: 6,739.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,420.01 : 11,619.50 = 4,883.55 : x
  2. Step 2: Convert to fraction form
    8,420.01/11,619.50 = 4,883.55/x
  3. Step 3: Cross multiply
    8,420.01x = 11,619.50 × 4,883.55
  4. Step 4: Simplify right side
    8,420.01x = 56,744,384.81
  5. Step 5: Solve for x
    x = 56,744,384.81/8,420.01
  6. Step 6: Final answer
    x = 6,739.23

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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.