Home / 12,620.07-17,414.51-7,315.20

Finding the Fourth Proportional to 12,620.07, 17,414.51 and 7,315.20

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Solution

The fourth proportional to 12,620.07, 17,414.51 and 7,315.20 is: 10,094.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,620.07 : 17,414.51 = 7,315.20 : x
  2. Step 2: Convert to fraction form
    12,620.07/17,414.51 = 7,315.20/x
  3. Step 3: Cross multiply
    12,620.07x = 17,414.51 × 7,315.20
  4. Step 4: Simplify right side
    12,620.07x = 127,390,586.98
  5. Step 5: Solve for x
    x = 127,390,586.98/12,620.07
  6. Step 6: Final answer
    x = 10,094.29

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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.