Home / 15,378.45-22,983.40-11,227.20

Finding the Fourth Proportional to 15,378.45, 22,983.40 and 11,227.20

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Solution

The fourth proportional to 15,378.45, 22,983.40 and 11,227.20 is: 16,779.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,378.45 : 22,983.40 = 11,227.20 : x
  2. Step 2: Convert to fraction form
    15,378.45/22,983.40 = 11,227.20/x
  3. Step 3: Cross multiply
    15,378.45x = 22,983.40 × 11,227.20
  4. Step 4: Simplify right side
    15,378.45x = 258,039,156.33
  5. Step 5: Solve for x
    x = 258,039,156.33/15,378.45
  6. Step 6: Final answer
    x = 16,779.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.