Home / 9,221.49-12,721.23-6,238.35

Finding the Fourth Proportional to 9,221.49, 12,721.23 and 6,238.35

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Solution

The fourth proportional to 9,221.49, 12,721.23 and 6,238.35 is: 8,605.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,221.49 : 12,721.23 = 6,238.35 : x
  2. Step 2: Convert to fraction form
    9,221.49/12,721.23 = 6,238.35/x
  3. Step 3: Cross multiply
    9,221.49x = 12,721.23 × 6,238.35
  4. Step 4: Simplify right side
    9,221.49x = 79,359,485.17
  5. Step 5: Solve for x
    x = 79,359,485.17/9,221.49
  6. Step 6: Final answer
    x = 8,605.93

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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.