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Finding the Fourth Proportional to 8,703.19, 13,055.09 and 2,860.25

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Solution

The fourth proportional to 8,703.19, 13,055.09 and 2,860.25 is: 4,290.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.19 : 13,055.09 = 2,860.25 : x
  2. Step 2: Convert to fraction form
    8,703.19/13,055.09 = 2,860.25/x
  3. Step 3: Cross multiply
    8,703.19x = 13,055.09 × 2,860.25
  4. Step 4: Simplify right side
    8,703.19x = 37,340,839.51
  5. Step 5: Solve for x
    x = 37,340,839.51/8,703.19
  6. Step 6: Final answer
    x = 4,290.48

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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.