Home / 12,684.48-19,036.44-9,407.76

Finding the Fourth Proportional to 12,684.48, 19,036.44 and 9,407.76

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Solution

The fourth proportional to 12,684.48, 19,036.44 and 9,407.76 is: 14,118.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.48 : 19,036.44 = 9,407.76 : x
  2. Step 2: Convert to fraction form
    12,684.48/19,036.44 = 9,407.76/x
  3. Step 3: Cross multiply
    12,684.48x = 19,036.44 × 9,407.76
  4. Step 4: Simplify right side
    12,684.48x = 179,090,258.77
  5. Step 5: Solve for x
    x = 179,090,258.77/12,684.48
  6. Step 6: Final answer
    x = 14,118.85

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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.