Home / 10,579.95-15,870.58-2,788.76

Finding the Fourth Proportional to 10,579.95, 15,870.58 and 2,788.76

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Solution

The fourth proportional to 10,579.95, 15,870.58 and 2,788.76 is: 4,183.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.95 : 15,870.58 = 2,788.76 : x
  2. Step 2: Convert to fraction form
    10,579.95/15,870.58 = 2,788.76/x
  3. Step 3: Cross multiply
    10,579.95x = 15,870.58 × 2,788.76
  4. Step 4: Simplify right side
    10,579.95x = 44,259,271.39
  5. Step 5: Solve for x
    x = 44,259,271.39/10,579.95
  6. Step 6: Final answer
    x = 4,183.32

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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.