Home / 18,837.95-28,262.12-8,316.35

Finding the Fourth Proportional to 18,837.95, 28,262.12 and 8,316.35

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Solution

The fourth proportional to 18,837.95, 28,262.12 and 8,316.35 is: 12,476.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,837.95 : 28,262.12 = 8,316.35 : x
  2. Step 2: Convert to fraction form
    18,837.95/28,262.12 = 8,316.35/x
  3. Step 3: Cross multiply
    18,837.95x = 28,262.12 × 8,316.35
  4. Step 4: Simplify right side
    18,837.95x = 235,037,604.75
  5. Step 5: Solve for x
    x = 235,037,604.75/18,837.95
  6. Step 6: Final answer
    x = 12,476.82

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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.