Home / 18,748.30-28,102.86-8,875.84

Finding the Fourth Proportional to 18,748.30, 28,102.86 and 8,875.84

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Solution

The fourth proportional to 18,748.30, 28,102.86 and 8,875.84 is: 13,304.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,748.30 : 28,102.86 = 8,875.84 : x
  2. Step 2: Convert to fraction form
    18,748.30/28,102.86 = 8,875.84/x
  3. Step 3: Cross multiply
    18,748.30x = 28,102.86 × 8,875.84
  4. Step 4: Simplify right side
    18,748.30x = 249,436,488.90
  5. Step 5: Solve for x
    x = 249,436,488.90/18,748.30
  6. Step 6: Final answer
    x = 13,304.49

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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.