Home / 14,971.33-20,643.36-11,188.14

Finding the Fourth Proportional to 14,971.33, 20,643.36 and 11,188.14

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Solution

The fourth proportional to 14,971.33, 20,643.36 and 11,188.14 is: 15,426.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,971.33 : 20,643.36 = 11,188.14 : x
  2. Step 2: Convert to fraction form
    14,971.33/20,643.36 = 11,188.14/x
  3. Step 3: Cross multiply
    14,971.33x = 20,643.36 × 11,188.14
  4. Step 4: Simplify right side
    14,971.33x = 230,960,801.75
  5. Step 5: Solve for x
    x = 230,960,801.75/14,971.33
  6. Step 6: Final answer
    x = 15,426.87

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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.