Home / 12,117.08-18,185.34-6,275.36

Finding the Fourth Proportional to 12,117.08, 18,185.34 and 6,275.36

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Solution

The fourth proportional to 12,117.08, 18,185.34 and 6,275.36 is: 9,418.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.08 : 18,185.34 = 6,275.36 : x
  2. Step 2: Convert to fraction form
    12,117.08/18,185.34 = 6,275.36/x
  3. Step 3: Cross multiply
    12,117.08x = 18,185.34 × 6,275.36
  4. Step 4: Simplify right side
    12,117.08x = 114,119,555.22
  5. Step 5: Solve for x
    x = 114,119,555.22/12,117.08
  6. Step 6: Final answer
    x = 9,418.07

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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.