Home / 12,570.76-18,856.24-3,806.36

Finding the Fourth Proportional to 12,570.76, 18,856.24 and 3,806.36

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Solution

The fourth proportional to 12,570.76, 18,856.24 and 3,806.36 is: 5,709.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.76 : 18,856.24 = 3,806.36 : x
  2. Step 2: Convert to fraction form
    12,570.76/18,856.24 = 3,806.36/x
  3. Step 3: Cross multiply
    12,570.76x = 18,856.24 × 3,806.36
  4. Step 4: Simplify right side
    12,570.76x = 71,773,637.69
  5. Step 5: Solve for x
    x = 71,773,637.69/12,570.76
  6. Step 6: Final answer
    x = 5,709.57

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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.