Home / 10,579.70-15,870.60-3,917.98

Finding the Fourth Proportional to 10,579.70, 15,870.60 and 3,917.98

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Solution

The fourth proportional to 10,579.70, 15,870.60 and 3,917.98 is: 5,877.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.70 : 15,870.60 = 3,917.98 : x
  2. Step 2: Convert to fraction form
    10,579.70/15,870.60 = 3,917.98/x
  3. Step 3: Cross multiply
    10,579.70x = 15,870.60 × 3,917.98
  4. Step 4: Simplify right side
    10,579.70x = 62,180,703.18
  5. Step 5: Solve for x
    x = 62,180,703.18/10,579.70
  6. Step 6: Final answer
    x = 5,877.36

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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.