Home / 12,493.31-18,701.35-6,856.88

Finding the Fourth Proportional to 12,493.31, 18,701.35 and 6,856.88

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Solution

The fourth proportional to 12,493.31, 18,701.35 and 6,856.88 is: 10,264.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,493.31 : 18,701.35 = 6,856.88 : x
  2. Step 2: Convert to fraction form
    12,493.31/18,701.35 = 6,856.88/x
  3. Step 3: Cross multiply
    12,493.31x = 18,701.35 × 6,856.88
  4. Step 4: Simplify right side
    12,493.31x = 128,232,802.14
  5. Step 5: Solve for x
    x = 128,232,802.14/12,493.31
  6. Step 6: Final answer
    x = 10,264.12

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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.