Home / 8,581.65-12,848.21-5,453.91

Finding the Fourth Proportional to 8,581.65, 12,848.21 and 5,453.91

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Solution

The fourth proportional to 8,581.65, 12,848.21 and 5,453.91 is: 8,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.65 : 12,848.21 = 5,453.91 : x
  2. Step 2: Convert to fraction form
    8,581.65/12,848.21 = 5,453.91/x
  3. Step 3: Cross multiply
    8,581.65x = 12,848.21 × 5,453.91
  4. Step 4: Simplify right side
    8,581.65x = 70,072,981.00
  5. Step 5: Solve for x
    x = 70,072,981.00/8,581.65
  6. Step 6: Final answer
    x = 8,165.44

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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.