Home / 9,289.51-12,821.39-6,306.31

Finding the Fourth Proportional to 9,289.51, 12,821.39 and 6,306.31

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Solution

The fourth proportional to 9,289.51, 12,821.39 and 6,306.31 is: 8,703.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,289.51 : 12,821.39 = 6,306.31 : x
  2. Step 2: Convert to fraction form
    9,289.51/12,821.39 = 6,306.31/x
  3. Step 3: Cross multiply
    9,289.51x = 12,821.39 × 6,306.31
  4. Step 4: Simplify right side
    9,289.51x = 80,855,628.44
  5. Step 5: Solve for x
    x = 80,855,628.44/9,289.51
  6. Step 6: Final answer
    x = 8,703.98

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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.