Home / 12,498.08-18,747.63-4,178.36

Finding the Fourth Proportional to 12,498.08, 18,747.63 and 4,178.36

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Solution

The fourth proportional to 12,498.08, 18,747.63 and 4,178.36 is: 6,267.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,498.08 : 18,747.63 = 4,178.36 : x
  2. Step 2: Convert to fraction form
    12,498.08/18,747.63 = 4,178.36/x
  3. Step 3: Cross multiply
    12,498.08x = 18,747.63 × 4,178.36
  4. Step 4: Simplify right side
    12,498.08x = 78,334,394.16
  5. Step 5: Solve for x
    x = 78,334,394.16/12,498.08
  6. Step 6: Final answer
    x = 6,267.72

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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.