Home / 18,762.25-28,137.50-6,279.36

Finding the Fourth Proportional to 18,762.25, 28,137.50 and 6,279.36

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Solution

The fourth proportional to 18,762.25, 28,137.50 and 6,279.36 is: 9,417.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,762.25 : 28,137.50 = 6,279.36 : x
  2. Step 2: Convert to fraction form
    18,762.25/28,137.50 = 6,279.36/x
  3. Step 3: Cross multiply
    18,762.25x = 28,137.50 × 6,279.36
  4. Step 4: Simplify right side
    18,762.25x = 176,685,492
  5. Step 5: Solve for x
    x = 176,685,492/18,762.25
  6. Step 6: Final answer
    x = 9,417.07

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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.