Home / 12,461.60-18,697.80-6,305.60

Finding the Fourth Proportional to 12,461.60, 18,697.80 and 6,305.60

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Solution

The fourth proportional to 12,461.60, 18,697.80 and 6,305.60 is: 9,461.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,461.60 : 18,697.80 = 6,305.60 : x
  2. Step 2: Convert to fraction form
    12,461.60/18,697.80 = 6,305.60/x
  3. Step 3: Cross multiply
    12,461.60x = 18,697.80 × 6,305.60
  4. Step 4: Simplify right side
    12,461.60x = 117,900,847.68
  5. Step 5: Solve for x
    x = 117,900,847.68/12,461.60
  6. Step 6: Final answer
    x = 9,461.13

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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.