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Finding the Fourth Proportional to 15,693.60, 23,540.40 and 11,465.40

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Solution

The fourth proportional to 15,693.60, 23,540.40 and 11,465.40 is: 17,198.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.60 : 23,540.40 = 11,465.40 : x
  2. Step 2: Convert to fraction form
    15,693.60/23,540.40 = 11,465.40/x
  3. Step 3: Cross multiply
    15,693.60x = 23,540.40 × 11,465.40
  4. Step 4: Simplify right side
    15,693.60x = 269,900,102.16
  5. Step 5: Solve for x
    x = 269,900,102.16/15,693.60
  6. Step 6: Final answer
    x = 17,198.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.