Home / 18,715.38-28,058.34-9,350.58

Finding the Fourth Proportional to 18,715.38, 28,058.34 and 9,350.58

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Solution

The fourth proportional to 18,715.38, 28,058.34 and 9,350.58 is: 14,018.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,715.38 : 28,058.34 = 9,350.58 : x
  2. Step 2: Convert to fraction form
    18,715.38/28,058.34 = 9,350.58/x
  3. Step 3: Cross multiply
    18,715.38x = 28,058.34 × 9,350.58
  4. Step 4: Simplify right side
    18,715.38x = 262,361,752.84
  5. Step 5: Solve for x
    x = 262,361,752.84/18,715.38
  6. Step 6: Final answer
    x = 14,018.51

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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.