Home / 9,315.24-13,973.54-3,075

Finding the Fourth Proportional to 9,315.24, 13,973.54 and 3,075

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Solution

The fourth proportional to 9,315.24, 13,973.54 and 3,075 is: 4,612.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,315.24 : 13,973.54 = 3,075 : x
  2. Step 2: Convert to fraction form
    9,315.24/13,973.54 = 3,075/x
  3. Step 3: Cross multiply
    9,315.24x = 13,973.54 × 3,075
  4. Step 4: Simplify right side
    9,315.24x = 42,968,620.13
  5. Step 5: Solve for x
    x = 42,968,620.13/9,315.24
  6. Step 6: Final answer
    x = 4,612.72

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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.