Home / 13,830.92-19,086.36-7,543.52

Finding the Fourth Proportional to 13,830.92, 19,086.36 and 7,543.52

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Solution

The fourth proportional to 13,830.92, 19,086.36 and 7,543.52 is: 10,409.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.92 : 19,086.36 = 7,543.52 : x
  2. Step 2: Convert to fraction form
    13,830.92/19,086.36 = 7,543.52/x
  3. Step 3: Cross multiply
    13,830.92x = 19,086.36 × 7,543.52
  4. Step 4: Simplify right side
    13,830.92x = 143,978,338.39
  5. Step 5: Solve for x
    x = 143,978,338.39/13,830.92
  6. Step 6: Final answer
    x = 10,409.89

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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.