Home / 15,558.32-21,464.35-9,579.60

Finding the Fourth Proportional to 15,558.32, 21,464.35 and 9,579.60

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Solution

The fourth proportional to 15,558.32, 21,464.35 and 9,579.60 is: 13,216.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558.32 : 21,464.35 = 9,579.60 : x
  2. Step 2: Convert to fraction form
    15,558.32/21,464.35 = 9,579.60/x
  3. Step 3: Cross multiply
    15,558.32x = 21,464.35 × 9,579.60
  4. Step 4: Simplify right side
    15,558.32x = 205,619,887.26
  5. Step 5: Solve for x
    x = 205,619,887.26/15,558.32
  6. Step 6: Final answer
    x = 13,216.07

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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.