Home / 12,857.42-19,271.28-5,917.34

Finding the Fourth Proportional to 12,857.42, 19,271.28 and 5,917.34

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Solution

The fourth proportional to 12,857.42, 19,271.28 and 5,917.34 is: 8,869.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,857.42 : 19,271.28 = 5,917.34 : x
  2. Step 2: Convert to fraction form
    12,857.42/19,271.28 = 5,917.34/x
  3. Step 3: Cross multiply
    12,857.42x = 19,271.28 × 5,917.34
  4. Step 4: Simplify right side
    12,857.42x = 114,034,716.00
  5. Step 5: Solve for x
    x = 114,034,716.00/12,857.42
  6. Step 6: Final answer
    x = 8,869.18

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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.