Home / 13,102.40-18,060.08-11,396.54

Finding the Fourth Proportional to 13,102.40, 18,060.08 and 11,396.54

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Solution

The fourth proportional to 13,102.40, 18,060.08 and 11,396.54 is: 15,708.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,102.40 : 18,060.08 = 11,396.54 : x
  2. Step 2: Convert to fraction form
    13,102.40/18,060.08 = 11,396.54/x
  3. Step 3: Cross multiply
    13,102.40x = 18,060.08 × 11,396.54
  4. Step 4: Simplify right side
    13,102.40x = 205,822,424.12
  5. Step 5: Solve for x
    x = 205,822,424.12/13,102.40
  6. Step 6: Final answer
    x = 15,708.76

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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.