Home / 12,975.30-17,902.21-7,308.07

Finding the Fourth Proportional to 12,975.30, 17,902.21 and 7,308.07

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Solution

The fourth proportional to 12,975.30, 17,902.21 and 7,308.07 is: 10,083.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.30 : 17,902.21 = 7,308.07 : x
  2. Step 2: Convert to fraction form
    12,975.30/17,902.21 = 7,308.07/x
  3. Step 3: Cross multiply
    12,975.30x = 17,902.21 × 7,308.07
  4. Step 4: Simplify right side
    12,975.30x = 130,830,514.32
  5. Step 5: Solve for x
    x = 130,830,514.32/12,975.30
  6. Step 6: Final answer
    x = 10,083.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.