Home / 8,705.47-13,052.80-2,860.51

Finding the Fourth Proportional to 8,705.47, 13,052.80 and 2,860.51

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Solution

The fourth proportional to 8,705.47, 13,052.80 and 2,860.51 is: 4,288.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,705.47 : 13,052.80 = 2,860.51 : x
  2. Step 2: Convert to fraction form
    8,705.47/13,052.80 = 2,860.51/x
  3. Step 3: Cross multiply
    8,705.47x = 13,052.80 × 2,860.51
  4. Step 4: Simplify right side
    8,705.47x = 37,337,664.93
  5. Step 5: Solve for x
    x = 37,337,664.93/8,705.47
  6. Step 6: Final answer
    x = 4,288.99

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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.