Home / 18,688.12-28,034.02-4,837.12

Finding the Fourth Proportional to 18,688.12, 28,034.02 and 4,837.12

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Solution

The fourth proportional to 18,688.12, 28,034.02 and 4,837.12 is: 7,256.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,688.12 : 28,034.02 = 4,837.12 : x
  2. Step 2: Convert to fraction form
    18,688.12/28,034.02 = 4,837.12/x
  3. Step 3: Cross multiply
    18,688.12x = 28,034.02 × 4,837.12
  4. Step 4: Simplify right side
    18,688.12x = 135,603,918.82
  5. Step 5: Solve for x
    x = 135,603,918.82/18,688.12
  6. Step 6: Final answer
    x = 7,256.16

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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.