Home / 13,146.03-18,141.83-7,177.74

Finding the Fourth Proportional to 13,146.03, 18,141.83 and 7,177.74

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Solution

The fourth proportional to 13,146.03, 18,141.83 and 7,177.74 is: 9,905.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146.03 : 18,141.83 = 7,177.74 : x
  2. Step 2: Convert to fraction form
    13,146.03/18,141.83 = 7,177.74/x
  3. Step 3: Cross multiply
    13,146.03x = 18,141.83 × 7,177.74
  4. Step 4: Simplify right side
    13,146.03x = 130,217,317.93
  5. Step 5: Solve for x
    x = 130,217,317.93/13,146.03
  6. Step 6: Final answer
    x = 9,905.45

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Similar ratio
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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.