Home / 8,742.88-12,065.21-4,764.03

Finding the Fourth Proportional to 8,742.88, 12,065.21 and 4,764.03

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Solution

The fourth proportional to 8,742.88, 12,065.21 and 4,764.03 is: 6,574.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.88 : 12,065.21 = 4,764.03 : x
  2. Step 2: Convert to fraction form
    8,742.88/12,065.21 = 4,764.03/x
  3. Step 3: Cross multiply
    8,742.88x = 12,065.21 × 4,764.03
  4. Step 4: Simplify right side
    8,742.88x = 57,479,022.40
  5. Step 5: Solve for x
    x = 57,479,022.40/8,742.88
  6. Step 6: Final answer
    x = 6,574.38

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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.