Home / 9,511.61-14,271.50-5,128.04

Finding the Fourth Proportional to 9,511.61, 14,271.50 and 5,128.04

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Solution

The fourth proportional to 9,511.61, 14,271.50 and 5,128.04 is: 7,694.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,511.61 : 14,271.50 = 5,128.04 : x
  2. Step 2: Convert to fraction form
    9,511.61/14,271.50 = 5,128.04/x
  3. Step 3: Cross multiply
    9,511.61x = 14,271.50 × 5,128.04
  4. Step 4: Simplify right side
    9,511.61x = 73,184,871.36
  5. Step 5: Solve for x
    x = 73,184,871.36/9,511.61
  6. Step 6: Final answer
    x = 7,694.27

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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.