Home / 13,785.39-19,023.66-7,497.77

Finding the Fourth Proportional to 13,785.39, 19,023.66 and 7,497.77

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Solution

The fourth proportional to 13,785.39, 19,023.66 and 7,497.77 is: 10,346.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,785.39 : 19,023.66 = 7,497.77 : x
  2. Step 2: Convert to fraction form
    13,785.39/19,023.66 = 7,497.77/x
  3. Step 3: Cross multiply
    13,785.39x = 19,023.66 × 7,497.77
  4. Step 4: Simplify right side
    13,785.39x = 142,634,932.12
  5. Step 5: Solve for x
    x = 142,634,932.12/13,785.39
  6. Step 6: Final answer
    x = 10,346.82

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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.