Home / 12,861.14-19,293.29-4,539.47

Finding the Fourth Proportional to 12,861.14, 19,293.29 and 4,539.47

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Solution

The fourth proportional to 12,861.14, 19,293.29 and 4,539.47 is: 6,809.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,861.14 : 19,293.29 = 4,539.47 : x
  2. Step 2: Convert to fraction form
    12,861.14/19,293.29 = 4,539.47/x
  3. Step 3: Cross multiply
    12,861.14x = 19,293.29 × 4,539.47
  4. Step 4: Simplify right side
    12,861.14x = 87,581,209.02
  5. Step 5: Solve for x
    x = 87,581,209.02/12,861.14
  6. Step 6: Final answer
    x = 6,809.76

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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.