Home / 15,271.60-21,084.96-11,728.48

Finding the Fourth Proportional to 15,271.60, 21,084.96 and 11,728.48

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Solution

The fourth proportional to 15,271.60, 21,084.96 and 11,728.48 is: 16,193.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,271.60 : 21,084.96 = 11,728.48 : x
  2. Step 2: Convert to fraction form
    15,271.60/21,084.96 = 11,728.48/x
  3. Step 3: Cross multiply
    15,271.60x = 21,084.96 × 11,728.48
  4. Step 4: Simplify right side
    15,271.60x = 247,294,531.66
  5. Step 5: Solve for x
    x = 247,294,531.66/15,271.60
  6. Step 6: Final answer
    x = 16,193.10

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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.