Home / 11,156.40-15,395.72-6,120.36

Finding the Fourth Proportional to 11,156.40, 15,395.72 and 6,120.36

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Solution

The fourth proportional to 11,156.40, 15,395.72 and 6,120.36 is: 8,446.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,156.40 : 15,395.72 = 6,120.36 : x
  2. Step 2: Convert to fraction form
    11,156.40/15,395.72 = 6,120.36/x
  3. Step 3: Cross multiply
    11,156.40x = 15,395.72 × 6,120.36
  4. Step 4: Simplify right side
    11,156.40x = 94,227,318.26
  5. Step 5: Solve for x
    x = 94,227,318.26/11,156.40
  6. Step 6: Final answer
    x = 8,446.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.