Home / 8,918.86-13,384.44-3,075.47

Finding the Fourth Proportional to 8,918.86, 13,384.44 and 3,075.47

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Solution

The fourth proportional to 8,918.86, 13,384.44 and 3,075.47 is: 4,615.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918.86 : 13,384.44 = 3,075.47 : x
  2. Step 2: Convert to fraction form
    8,918.86/13,384.44 = 3,075.47/x
  3. Step 3: Cross multiply
    8,918.86x = 13,384.44 × 3,075.47
  4. Step 4: Simplify right side
    8,918.86x = 41,163,426.96
  5. Step 5: Solve for x
    x = 41,163,426.96/8,918.86
  6. Step 6: Final answer
    x = 4,615.32

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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.