Home / 12,508.40-18,762.60-9,743.60

Finding the Fourth Proportional to 12,508.40, 18,762.60 and 9,743.60

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Solution

The fourth proportional to 12,508.40, 18,762.60 and 9,743.60 is: 14,615.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.40 : 18,762.60 = 9,743.60 : x
  2. Step 2: Convert to fraction form
    12,508.40/18,762.60 = 9,743.60/x
  3. Step 3: Cross multiply
    12,508.40x = 18,762.60 × 9,743.60
  4. Step 4: Simplify right side
    12,508.40x = 182,815,269.36
  5. Step 5: Solve for x
    x = 182,815,269.36/12,508.40
  6. Step 6: Final answer
    x = 14,615.40

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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.