Home / 13,871.14-19,145.73-8,562.90

Finding the Fourth Proportional to 13,871.14, 19,145.73 and 8,562.90

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Solution

The fourth proportional to 13,871.14, 19,145.73 and 8,562.90 is: 11,819.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,871.14 : 19,145.73 = 8,562.90 : x
  2. Step 2: Convert to fraction form
    13,871.14/19,145.73 = 8,562.90/x
  3. Step 3: Cross multiply
    13,871.14x = 19,145.73 × 8,562.90
  4. Step 4: Simplify right side
    13,871.14x = 163,942,971.42
  5. Step 5: Solve for x
    x = 163,942,971.42/13,871.14
  6. Step 6: Final answer
    x = 11,819.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.