Home / 12,938.51-19,407.74-4,054.52

Finding the Fourth Proportional to 12,938.51, 19,407.74 and 4,054.52

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Solution

The fourth proportional to 12,938.51, 19,407.74 and 4,054.52 is: 6,081.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,938.51 : 19,407.74 = 4,054.52 : x
  2. Step 2: Convert to fraction form
    12,938.51/19,407.74 = 4,054.52/x
  3. Step 3: Cross multiply
    12,938.51x = 19,407.74 × 4,054.52
  4. Step 4: Simplify right side
    12,938.51x = 78,689,082.95
  5. Step 5: Solve for x
    x = 78,689,082.95/12,938.51
  6. Step 6: Final answer
    x = 6,081.77

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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.