Home / 12,871.08-19,306.80-3,637.08

Finding the Fourth Proportional to 12,871.08, 19,306.80 and 3,637.08

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Solution

The fourth proportional to 12,871.08, 19,306.80 and 3,637.08 is: 5,455.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,871.08 : 19,306.80 = 3,637.08 : x
  2. Step 2: Convert to fraction form
    12,871.08/19,306.80 = 3,637.08/x
  3. Step 3: Cross multiply
    12,871.08x = 19,306.80 × 3,637.08
  4. Step 4: Simplify right side
    12,871.08x = 70,220,376.14
  5. Step 5: Solve for x
    x = 70,220,376.14/12,871.08
  6. Step 6: Final answer
    x = 5,455.67

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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.