Home / 10,579.10-15,867.40-2,788.52

Finding the Fourth Proportional to 10,579.10, 15,867.40 and 2,788.52

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Solution

The fourth proportional to 10,579.10, 15,867.40 and 2,788.52 is: 4,182.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,579.10 : 15,867.40 = 2,788.52 : x
  2. Step 2: Convert to fraction form
    10,579.10/15,867.40 = 2,788.52/x
  3. Step 3: Cross multiply
    10,579.10x = 15,867.40 × 2,788.52
  4. Step 4: Simplify right side
    10,579.10x = 44,246,562.25
  5. Step 5: Solve for x
    x = 44,246,562.25/10,579.10
  6. Step 6: Final answer
    x = 4,182.45

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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.