Home / 8,215.16-12,303.12-4,741.88

Finding the Fourth Proportional to 8,215.16, 12,303.12 and 4,741.88

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Solution

The fourth proportional to 8,215.16, 12,303.12 and 4,741.88 is: 7,101.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.16 : 12,303.12 = 4,741.88 : x
  2. Step 2: Convert to fraction form
    8,215.16/12,303.12 = 4,741.88/x
  3. Step 3: Cross multiply
    8,215.16x = 12,303.12 × 4,741.88
  4. Step 4: Simplify right side
    8,215.16x = 58,339,918.67
  5. Step 5: Solve for x
    x = 58,339,918.67/8,215.16
  6. Step 6: Final answer
    x = 7,101.50

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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.