Home / 12,315.23-16,996.27-7,281.08

Finding the Fourth Proportional to 12,315.23, 16,996.27 and 7,281.08

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Solution

The fourth proportional to 12,315.23, 16,996.27 and 7,281.08 is: 10,048.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,315.23 : 16,996.27 = 7,281.08 : x
  2. Step 2: Convert to fraction form
    12,315.23/16,996.27 = 7,281.08/x
  3. Step 3: Cross multiply
    12,315.23x = 16,996.27 × 7,281.08
  4. Step 4: Simplify right side
    12,315.23x = 123,751,201.57
  5. Step 5: Solve for x
    x = 123,751,201.57/12,315.23
  6. Step 6: Final answer
    x = 10,048.63

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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.