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Finding the Fourth Proportional to 12,563.60, 18,823.80 and 10,360.40

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Solution

The fourth proportional to 12,563.60, 18,823.80 and 10,360.40 is: 15,522.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563.60 : 18,823.80 = 10,360.40 : x
  2. Step 2: Convert to fraction form
    12,563.60/18,823.80 = 10,360.40/x
  3. Step 3: Cross multiply
    12,563.60x = 18,823.80 × 10,360.40
  4. Step 4: Simplify right side
    12,563.60x = 195,022,097.52
  5. Step 5: Solve for x
    x = 195,022,097.52/12,563.60
  6. Step 6: Final answer
    x = 15,522.79

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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.