Home / 10,535.70-15,803.40-3,145.26

Finding the Fourth Proportional to 10,535.70, 15,803.40 and 3,145.26

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Solution

The fourth proportional to 10,535.70, 15,803.40 and 3,145.26 is: 4,717.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,535.70 : 15,803.40 = 3,145.26 : x
  2. Step 2: Convert to fraction form
    10,535.70/15,803.40 = 3,145.26/x
  3. Step 3: Cross multiply
    10,535.70x = 15,803.40 × 3,145.26
  4. Step 4: Simplify right side
    10,535.70x = 49,705,801.88
  5. Step 5: Solve for x
    x = 49,705,801.88/10,535.70
  6. Step 6: Final answer
    x = 4,717.85

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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.