Home / 8,215.23-12,302.07-5,433.47

Finding the Fourth Proportional to 8,215.23, 12,302.07 and 5,433.47

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Solution

The fourth proportional to 8,215.23, 12,302.07 and 5,433.47 is: 8,136.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,215.23 : 12,302.07 = 5,433.47 : x
  2. Step 2: Convert to fraction form
    8,215.23/12,302.07 = 5,433.47/x
  3. Step 3: Cross multiply
    8,215.23x = 12,302.07 × 5,433.47
  4. Step 4: Simplify right side
    8,215.23x = 66,842,866.77
  5. Step 5: Solve for x
    x = 66,842,866.77/8,215.23
  6. Step 6: Final answer
    x = 8,136.46

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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.