Home / 18,715.30-28,058.05-10,808.82

Finding the Fourth Proportional to 18,715.30, 28,058.05 and 10,808.82

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Solution

The fourth proportional to 18,715.30, 28,058.05 and 10,808.82 is: 16,204.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.30 : 28,058.05 = 10,808.82 : x
  2. Step 2: Convert to fraction form
    18,715.30/28,058.05 = 10,808.82/x
  3. Step 3: Cross multiply
    18,715.30x = 28,058.05 × 10,808.82
  4. Step 4: Simplify right side
    18,715.30x = 303,274,412.00
  5. Step 5: Solve for x
    x = 303,274,412.00/18,715.30
  6. Step 6: Final answer
    x = 16,204.62

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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.