Home / 15,272.55-21,076.10-8,558.23

Finding the Fourth Proportional to 15,272.55, 21,076.10 and 8,558.23

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Solution

The fourth proportional to 15,272.55, 21,076.10 and 8,558.23 is: 11,810.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272.55 : 21,076.10 = 8,558.23 : x
  2. Step 2: Convert to fraction form
    15,272.55/21,076.10 = 8,558.23/x
  3. Step 3: Cross multiply
    15,272.55x = 21,076.10 × 8,558.23
  4. Step 4: Simplify right side
    15,272.55x = 180,374,111.30
  5. Step 5: Solve for x
    x = 180,374,111.30/15,272.55
  6. Step 6: Final answer
    x = 11,810.35

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Double scale
Find fourth proportional to 15,273.55, 21,077.48 and 8,559.23
Similar ratio
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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.