Home / 13,173.56-18,177.36-7,508.40

Finding the Fourth Proportional to 13,173.56, 18,177.36 and 7,508.40

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Solution

The fourth proportional to 13,173.56, 18,177.36 and 7,508.40 is: 10,360.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.56 : 18,177.36 = 7,508.40 : x
  2. Step 2: Convert to fraction form
    13,173.56/18,177.36 = 7,508.40/x
  3. Step 3: Cross multiply
    13,173.56x = 18,177.36 × 7,508.40
  4. Step 4: Simplify right side
    13,173.56x = 136,482,889.82
  5. Step 5: Solve for x
    x = 136,482,889.82/13,173.56
  6. Step 6: Final answer
    x = 10,360.36

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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.