Home / 7,014.78-10,521.36-1,821.06

Finding the Fourth Proportional to 7,014.78, 10,521.36 and 1,821.06

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Solution

The fourth proportional to 7,014.78, 10,521.36 and 1,821.06 is: 2,731.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,014.78 : 10,521.36 = 1,821.06 : x
  2. Step 2: Convert to fraction form
    7,014.78/10,521.36 = 1,821.06/x
  3. Step 3: Cross multiply
    7,014.78x = 10,521.36 × 1,821.06
  4. Step 4: Simplify right side
    7,014.78x = 19,160,027.84
  5. Step 5: Solve for x
    x = 19,160,027.84/7,014.78
  6. Step 6: Final answer
    x = 2,731.38

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1.5x scale

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.