Home / 12,861.05-19,293.12-4,539.36

Finding the Fourth Proportional to 12,861.05, 19,293.12 and 4,539.36

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Solution

The fourth proportional to 12,861.05, 19,293.12 and 4,539.36 is: 6,809.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.05 : 19,293.12 = 4,539.36 : x
  2. Step 2: Convert to fraction form
    12,861.05/19,293.12 = 4,539.36/x
  3. Step 3: Cross multiply
    12,861.05x = 19,293.12 × 4,539.36
  4. Step 4: Simplify right side
    12,861.05x = 87,578,417.20
  5. Step 5: Solve for x
    x = 87,578,417.20/12,861.05
  6. Step 6: Final answer
    x = 6,809.59

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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.