Home / 12,756.74-17,604.29-7,091.31

Finding the Fourth Proportional to 12,756.74, 17,604.29 and 7,091.31

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Solution

The fourth proportional to 12,756.74, 17,604.29 and 7,091.31 is: 9,786.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,756.74 : 17,604.29 = 7,091.31 : x
  2. Step 2: Convert to fraction form
    12,756.74/17,604.29 = 7,091.31/x
  3. Step 3: Cross multiply
    12,756.74x = 17,604.29 × 7,091.31
  4. Step 4: Simplify right side
    12,756.74x = 124,837,442.26
  5. Step 5: Solve for x
    x = 124,837,442.26/12,756.74
  6. Step 6: Final answer
    x = 9,786.00

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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.