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Finding the Fourth Proportional to 13,271.84, 19,901.04 and 7,426.88

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Solution

The fourth proportional to 13,271.84, 19,901.04 and 7,426.88 is: 11,136.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,271.84 : 19,901.04 = 7,426.88 : x
  2. Step 2: Convert to fraction form
    13,271.84/19,901.04 = 7,426.88/x
  3. Step 3: Cross multiply
    13,271.84x = 19,901.04 × 7,426.88
  4. Step 4: Simplify right side
    13,271.84x = 147,802,635.96
  5. Step 5: Solve for x
    x = 147,802,635.96/13,271.84
  6. Step 6: Final answer
    x = 11,136.56

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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.