Home / 10,211.28-14,081.16-9,615.99

Finding the Fourth Proportional to 10,211.28, 14,081.16 and 9,615.99

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Solution

The fourth proportional to 10,211.28, 14,081.16 and 9,615.99 is: 13,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,211.28 : 14,081.16 = 9,615.99 : x
  2. Step 2: Convert to fraction form
    10,211.28/14,081.16 = 9,615.99/x
  3. Step 3: Cross multiply
    10,211.28x = 14,081.16 × 9,615.99
  4. Step 4: Simplify right side
    10,211.28x = 135,404,293.75
  5. Step 5: Solve for x
    x = 135,404,293.75/10,211.28
  6. Step 6: Final answer
    x = 13,260.27

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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.