Home / 12,900.33-19,353.28-4,015.48

Finding the Fourth Proportional to 12,900.33, 19,353.28 and 4,015.48

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Solution

The fourth proportional to 12,900.33, 19,353.28 and 4,015.48 is: 6,024.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,900.33 : 19,353.28 = 4,015.48 : x
  2. Step 2: Convert to fraction form
    12,900.33/19,353.28 = 4,015.48/x
  3. Step 3: Cross multiply
    12,900.33x = 19,353.28 × 4,015.48
  4. Step 4: Simplify right side
    12,900.33x = 77,712,708.77
  5. Step 5: Solve for x
    x = 77,712,708.77/12,900.33
  6. Step 6: Final answer
    x = 6,024.09

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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.