Home / 10,857.09-14,983.34-6,142.89

Finding the Fourth Proportional to 10,857.09, 14,983.34 and 6,142.89

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Solution

The fourth proportional to 10,857.09, 14,983.34 and 6,142.89 is: 8,477.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,857.09 : 14,983.34 = 6,142.89 : x
  2. Step 2: Convert to fraction form
    10,857.09/14,983.34 = 6,142.89/x
  3. Step 3: Cross multiply
    10,857.09x = 14,983.34 × 6,142.89
  4. Step 4: Simplify right side
    10,857.09x = 92,040,978.74
  5. Step 5: Solve for x
    x = 92,040,978.74/10,857.09
  6. Step 6: Final answer
    x = 8,477.50

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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.