Home / 10,274.16-15,405.44-6,991.68

Finding the Fourth Proportional to 10,274.16, 15,405.44 and 6,991.68

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Solution

The fourth proportional to 10,274.16, 15,405.44 and 6,991.68 is: 10,483.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,274.16 : 15,405.44 = 6,991.68 : x
  2. Step 2: Convert to fraction form
    10,274.16/15,405.44 = 6,991.68/x
  3. Step 3: Cross multiply
    10,274.16x = 15,405.44 × 6,991.68
  4. Step 4: Simplify right side
    10,274.16x = 107,709,906.74
  5. Step 5: Solve for x
    x = 107,709,906.74/10,274.16
  6. Step 6: Final answer
    x = 10,483.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.