Home / 13,785.11-19,023.36-7,497.47

Finding the Fourth Proportional to 13,785.11, 19,023.36 and 7,497.47

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Solution

The fourth proportional to 13,785.11, 19,023.36 and 7,497.47 is: 10,346.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.11 : 19,023.36 = 7,497.47 : x
  2. Step 2: Convert to fraction form
    13,785.11/19,023.36 = 7,497.47/x
  3. Step 3: Cross multiply
    13,785.11x = 19,023.36 × 7,497.47
  4. Step 4: Simplify right side
    13,785.11x = 142,627,070.90
  5. Step 5: Solve for x
    x = 142,627,070.90/13,785.11
  6. Step 6: Final answer
    x = 10,346.46

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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.