Home / 13,189.34-19,784.61-7,341.54

Finding the Fourth Proportional to 13,189.34, 19,784.61 and 7,341.54

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Solution

The fourth proportional to 13,189.34, 19,784.61 and 7,341.54 is: 11,012.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.34 : 19,784.61 = 7,341.54 : x
  2. Step 2: Convert to fraction form
    13,189.34/19,784.61 = 7,341.54/x
  3. Step 3: Cross multiply
    13,189.34x = 19,784.61 × 7,341.54
  4. Step 4: Simplify right side
    13,189.34x = 145,249,505.70
  5. Step 5: Solve for x
    x = 145,249,505.70/13,189.34
  6. Step 6: Final answer
    x = 11,012.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.