Home / 12,508.04-18,747.90-4,186.10

Finding the Fourth Proportional to 12,508.04, 18,747.90 and 4,186.10

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Solution

The fourth proportional to 12,508.04, 18,747.90 and 4,186.10 is: 6,274.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,508.04 : 18,747.90 = 4,186.10 : x
  2. Step 2: Convert to fraction form
    12,508.04/18,747.90 = 4,186.10/x
  3. Step 3: Cross multiply
    12,508.04x = 18,747.90 × 4,186.10
  4. Step 4: Simplify right side
    12,508.04x = 78,480,584.19
  5. Step 5: Solve for x
    x = 78,480,584.19/12,508.04
  6. Step 6: Final answer
    x = 6,274.41

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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.