Home / 10,241.28-14,130.24-8,654.40

Finding the Fourth Proportional to 10,241.28, 14,130.24 and 8,654.40

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Solution

The fourth proportional to 10,241.28, 14,130.24 and 8,654.40 is: 11,940.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,241.28 : 14,130.24 = 8,654.40 : x
  2. Step 2: Convert to fraction form
    10,241.28/14,130.24 = 8,654.40/x
  3. Step 3: Cross multiply
    10,241.28x = 14,130.24 × 8,654.40
  4. Step 4: Simplify right side
    10,241.28x = 122,288,749.06
  5. Step 5: Solve for x
    x = 122,288,749.06/10,241.28
  6. Step 6: Final answer
    x = 11,940.77

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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.