Home / 13,824.40-19,077.60-7,536.72

Finding the Fourth Proportional to 13,824.40, 19,077.60 and 7,536.72

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Solution

The fourth proportional to 13,824.40, 19,077.60 and 7,536.72 is: 10,400.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.40 : 19,077.60 = 7,536.72 : x
  2. Step 2: Convert to fraction form
    13,824.40/19,077.60 = 7,536.72/x
  3. Step 3: Cross multiply
    13,824.40x = 19,077.60 × 7,536.72
  4. Step 4: Simplify right side
    13,824.40x = 143,782,529.47
  5. Step 5: Solve for x
    x = 143,782,529.47/13,824.40
  6. Step 6: Final answer
    x = 10,400.63

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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.