Home / 9,720.63-14,579.46-4,788.90

Finding the Fourth Proportional to 9,720.63, 14,579.46 and 4,788.90

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Solution

The fourth proportional to 9,720.63, 14,579.46 and 4,788.90 is: 7,182.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,720.63 : 14,579.46 = 4,788.90 : x
  2. Step 2: Convert to fraction form
    9,720.63/14,579.46 = 4,788.90/x
  3. Step 3: Cross multiply
    9,720.63x = 14,579.46 × 4,788.90
  4. Step 4: Simplify right side
    9,720.63x = 69,819,575.99
  5. Step 5: Solve for x
    x = 69,819,575.99/9,720.63
  6. Step 6: Final answer
    x = 7,182.62

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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.