Home / 8,742.17-12,063.88-4,763.21

Finding the Fourth Proportional to 8,742.17, 12,063.88 and 4,763.21

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Solution

The fourth proportional to 8,742.17, 12,063.88 and 4,763.21 is: 6,573.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,742.17 : 12,063.88 = 4,763.21 : x
  2. Step 2: Convert to fraction form
    8,742.17/12,063.88 = 4,763.21/x
  3. Step 3: Cross multiply
    8,742.17x = 12,063.88 × 4,763.21
  4. Step 4: Simplify right side
    8,742.17x = 57,462,739.49
  5. Step 5: Solve for x
    x = 57,462,739.49/8,742.17
  6. Step 6: Final answer
    x = 6,573.05

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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.