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Finding the Fourth Proportional to 15,684.60, 23,526.90 and 13,740.60

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Solution

The fourth proportional to 15,684.60, 23,526.90 and 13,740.60 is: 20,610.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,684.60 : 23,526.90 = 13,740.60 : x
  2. Step 2: Convert to fraction form
    15,684.60/23,526.90 = 13,740.60/x
  3. Step 3: Cross multiply
    15,684.60x = 23,526.90 × 13,740.60
  4. Step 4: Simplify right side
    15,684.60x = 323,273,722.14
  5. Step 5: Solve for x
    x = 323,273,722.14/15,684.60
  6. Step 6: Final answer
    x = 20,610.90

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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.