Home / 8,215.04-12,310.91-6,357.51

Finding the Fourth Proportional to 8,215.04, 12,310.91 and 6,357.51

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Solution

The fourth proportional to 8,215.04, 12,310.91 and 6,357.51 is: 9,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.04 : 12,310.91 = 6,357.51 : x
  2. Step 2: Convert to fraction form
    8,215.04/12,310.91 = 6,357.51/x
  3. Step 3: Cross multiply
    8,215.04x = 12,310.91 × 6,357.51
  4. Step 4: Simplify right side
    8,215.04x = 78,266,655.99
  5. Step 5: Solve for x
    x = 78,266,655.99/8,215.04
  6. Step 6: Final answer
    x = 9,527.24

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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.