Home / 12,977.19-19,440.14-8,581.32

Finding the Fourth Proportional to 12,977.19, 19,440.14 and 8,581.32

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Solution

The fourth proportional to 12,977.19, 19,440.14 and 8,581.32 is: 12,855.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,977.19 : 19,440.14 = 8,581.32 : x
  2. Step 2: Convert to fraction form
    12,977.19/19,440.14 = 8,581.32/x
  3. Step 3: Cross multiply
    12,977.19x = 19,440.14 × 8,581.32
  4. Step 4: Simplify right side
    12,977.19x = 166,822,019.28
  5. Step 5: Solve for x
    x = 166,822,019.28/12,977.19
  6. Step 6: Final answer
    x = 12,855.02

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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.