Home / 10,156.12-14,015.26-5,740.12

Finding the Fourth Proportional to 10,156.12, 14,015.26 and 5,740.12

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Solution

The fourth proportional to 10,156.12, 14,015.26 and 5,740.12 is: 7,921.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,156.12 : 14,015.26 = 5,740.12 : x
  2. Step 2: Convert to fraction form
    10,156.12/14,015.26 = 5,740.12/x
  3. Step 3: Cross multiply
    10,156.12x = 14,015.26 × 5,740.12
  4. Step 4: Simplify right side
    10,156.12x = 80,449,274.23
  5. Step 5: Solve for x
    x = 80,449,274.23/10,156.12
  6. Step 6: Final answer
    x = 7,921.26

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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.