Home / 15,541.60-23,286.80-12,930.40

Finding the Fourth Proportional to 15,541.60, 23,286.80 and 12,930.40

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Solution

The fourth proportional to 15,541.60, 23,286.80 and 12,930.40 is: 19,374.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,541.60 : 23,286.80 = 12,930.40 : x
  2. Step 2: Convert to fraction form
    15,541.60/23,286.80 = 12,930.40/x
  3. Step 3: Cross multiply
    15,541.60x = 23,286.80 × 12,930.40
  4. Step 4: Simplify right side
    15,541.60x = 301,107,638.72
  5. Step 5: Solve for x
    x = 301,107,638.72/15,541.60
  6. Step 6: Final answer
    x = 19,374.30

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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.