Home / 10,126.79-13,975.66-5,651.40

Finding the Fourth Proportional to 10,126.79, 13,975.66 and 5,651.40

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Solution

The fourth proportional to 10,126.79, 13,975.66 and 5,651.40 is: 7,799.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,126.79 : 13,975.66 = 5,651.40 : x
  2. Step 2: Convert to fraction form
    10,126.79/13,975.66 = 5,651.40/x
  3. Step 3: Cross multiply
    10,126.79x = 13,975.66 × 5,651.40
  4. Step 4: Simplify right side
    10,126.79x = 78,982,016.67
  5. Step 5: Solve for x
    x = 78,982,016.67/10,126.79
  6. Step 6: Final answer
    x = 7,799.32

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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.