Home / 8,980.10-13,461.63-3,135.14

Finding the Fourth Proportional to 8,980.10, 13,461.63 and 3,135.14

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Solution

The fourth proportional to 8,980.10, 13,461.63 and 3,135.14 is: 4,699.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.10 : 13,461.63 = 3,135.14 : x
  2. Step 2: Convert to fraction form
    8,980.10/13,461.63 = 3,135.14/x
  3. Step 3: Cross multiply
    8,980.10x = 13,461.63 × 3,135.14
  4. Step 4: Simplify right side
    8,980.10x = 42,204,094.68
  5. Step 5: Solve for x
    x = 42,204,094.68/8,980.10
  6. Step 6: Final answer
    x = 4,699.74

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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.