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Finding the Fourth Proportional to 15,276.60, 22,914.90 and 12,506.40

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Solution

The fourth proportional to 15,276.60, 22,914.90 and 12,506.40 is: 18,759.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,276.60 : 22,914.90 = 12,506.40 : x
  2. Step 2: Convert to fraction form
    15,276.60/22,914.90 = 12,506.40/x
  3. Step 3: Cross multiply
    15,276.60x = 22,914.90 × 12,506.40
  4. Step 4: Simplify right side
    15,276.60x = 286,582,905.36
  5. Step 5: Solve for x
    x = 286,582,905.36/15,276.60
  6. Step 6: Final answer
    x = 18,759.60

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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.