Home / 13,154.29-19,693.15-11,317.21

Finding the Fourth Proportional to 13,154.29, 19,693.15 and 11,317.21

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Solution

The fourth proportional to 13,154.29, 19,693.15 and 11,317.21 is: 16,942.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.29 : 19,693.15 = 11,317.21 : x
  2. Step 2: Convert to fraction form
    13,154.29/19,693.15 = 11,317.21/x
  3. Step 3: Cross multiply
    13,154.29x = 19,693.15 × 11,317.21
  4. Step 4: Simplify right side
    13,154.29x = 222,871,514.11
  5. Step 5: Solve for x
    x = 222,871,514.11/13,154.29
  6. Step 6: Final answer
    x = 16,942.88

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1.5x scale

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.