Home / 15,365.30-21,203.39-8,558.96

Finding the Fourth Proportional to 15,365.30, 21,203.39 and 8,558.96

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Solution

The fourth proportional to 15,365.30, 21,203.39 and 8,558.96 is: 11,810.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,365.30 : 21,203.39 = 8,558.96 : x
  2. Step 2: Convert to fraction form
    15,365.30/21,203.39 = 8,558.96/x
  3. Step 3: Cross multiply
    15,365.30x = 21,203.39 × 8,558.96
  4. Step 4: Simplify right side
    15,365.30x = 181,478,882.25
  5. Step 5: Solve for x
    x = 181,478,882.25/15,365.30
  6. Step 6: Final answer
    x = 11,810.96

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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.