Home / 15,558.53-21,464.64-9,579.83

Finding the Fourth Proportional to 15,558.53, 21,464.64 and 9,579.83

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Solution

The fourth proportional to 15,558.53, 21,464.64 and 9,579.83 is: 13,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.53 : 21,464.64 = 9,579.83 : x
  2. Step 2: Convert to fraction form
    15,558.53/21,464.64 = 9,579.83/x
  3. Step 3: Cross multiply
    15,558.53x = 21,464.64 × 9,579.83
  4. Step 4: Simplify right side
    15,558.53x = 205,627,494.89
  5. Step 5: Solve for x
    x = 205,627,494.89/15,558.53
  6. Step 6: Final answer
    x = 13,216.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.