Home / 11,966.40-17,913.69-7,271.91

Finding the Fourth Proportional to 11,966.40, 17,913.69 and 7,271.91

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Solution

The fourth proportional to 11,966.40, 17,913.69 and 7,271.91 is: 10,886.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,966.40 : 17,913.69 = 7,271.91 : x
  2. Step 2: Convert to fraction form
    11,966.40/17,913.69 = 7,271.91/x
  3. Step 3: Cross multiply
    11,966.40x = 17,913.69 × 7,271.91
  4. Step 4: Simplify right side
    11,966.40x = 130,266,741.45
  5. Step 5: Solve for x
    x = 130,266,741.45/11,966.40
  6. Step 6: Final answer
    x = 10,886.04

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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.