Home / 8,712.15-13,070.16-2,868.36

Finding the Fourth Proportional to 8,712.15, 13,070.16 and 2,868.36

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Solution

The fourth proportional to 8,712.15, 13,070.16 and 2,868.36 is: 4,303.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,712.15 : 13,070.16 = 2,868.36 : x
  2. Step 2: Convert to fraction form
    8,712.15/13,070.16 = 2,868.36/x
  3. Step 3: Cross multiply
    8,712.15x = 13,070.16 × 2,868.36
  4. Step 4: Simplify right side
    8,712.15x = 37,489,924.14
  5. Step 5: Solve for x
    x = 37,489,924.14/8,712.15
  6. Step 6: Final answer
    x = 4,303.18

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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.