Home / 12,117.06-18,180.09-8,417.34

Finding the Fourth Proportional to 12,117.06, 18,180.09 and 8,417.34

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Solution

The fourth proportional to 12,117.06, 18,180.09 and 8,417.34 is: 12,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,117.06 : 18,180.09 = 8,417.34 : x
  2. Step 2: Convert to fraction form
    12,117.06/18,180.09 = 8,417.34/x
  3. Step 3: Cross multiply
    12,117.06x = 18,180.09 × 8,417.34
  4. Step 4: Simplify right side
    12,117.06x = 153,027,998.76
  5. Step 5: Solve for x
    x = 153,027,998.76/12,117.06
  6. Step 6: Final answer
    x = 12,629.14

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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.