Home / 12,479.37-18,712.01-5,075.16

Finding the Fourth Proportional to 12,479.37, 18,712.01 and 5,075.16

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Solution

The fourth proportional to 12,479.37, 18,712.01 and 5,075.16 is: 7,609.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,479.37 : 18,712.01 = 5,075.16 : x
  2. Step 2: Convert to fraction form
    12,479.37/18,712.01 = 5,075.16/x
  3. Step 3: Cross multiply
    12,479.37x = 18,712.01 × 5,075.16
  4. Step 4: Simplify right side
    12,479.37x = 94,966,387.19
  5. Step 5: Solve for x
    x = 94,966,387.19/12,479.37
  6. Step 6: Final answer
    x = 7,609.87

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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.