Home / 15,427.19-21,268.92-11,582.55

Finding the Fourth Proportional to 15,427.19, 21,268.92 and 11,582.55

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Solution

The fourth proportional to 15,427.19, 21,268.92 and 11,582.55 is: 15,968.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.19 : 21,268.92 = 11,582.55 : x
  2. Step 2: Convert to fraction form
    15,427.19/21,268.92 = 11,582.55/x
  3. Step 3: Cross multiply
    15,427.19x = 21,268.92 × 11,582.55
  4. Step 4: Simplify right side
    15,427.19x = 246,348,329.35
  5. Step 5: Solve for x
    x = 246,348,329.35/15,427.19
  6. Step 6: Final answer
    x = 15,968.45

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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.