Home / 12,613.02-18,914.06-4,290.80

Finding the Fourth Proportional to 12,613.02, 18,914.06 and 4,290.80

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Solution

The fourth proportional to 12,613.02, 18,914.06 and 4,290.80 is: 6,434.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.02 : 18,914.06 = 4,290.80 : x
  2. Step 2: Convert to fraction form
    12,613.02/18,914.06 = 4,290.80/x
  3. Step 3: Cross multiply
    12,613.02x = 18,914.06 × 4,290.80
  4. Step 4: Simplify right side
    12,613.02x = 81,156,393.86
  5. Step 5: Solve for x
    x = 81,156,393.86/12,613.02
  6. Step 6: Final answer
    x = 6,434.34

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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.