Home / 13,979.30-19,291.08-7,605.62

Finding the Fourth Proportional to 13,979.30, 19,291.08 and 7,605.62

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Solution

The fourth proportional to 13,979.30, 19,291.08 and 7,605.62 is: 10,495.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,979.30 : 19,291.08 = 7,605.62 : x
  2. Step 2: Convert to fraction form
    13,979.30/19,291.08 = 7,605.62/x
  3. Step 3: Cross multiply
    13,979.30x = 19,291.08 × 7,605.62
  4. Step 4: Simplify right side
    13,979.30x = 146,720,623.87
  5. Step 5: Solve for x
    x = 146,720,623.87/13,979.30
  6. Step 6: Final answer
    x = 10,495.56

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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.