Home / 7,918.20-10,926.96-4,381.56

Finding the Fourth Proportional to 7,918.20, 10,926.96 and 4,381.56

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Solution

The fourth proportional to 7,918.20, 10,926.96 and 4,381.56 is: 6,046.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.20 : 10,926.96 = 4,381.56 : x
  2. Step 2: Convert to fraction form
    7,918.20/10,926.96 = 4,381.56/x
  3. Step 3: Cross multiply
    7,918.20x = 10,926.96 × 4,381.56
  4. Step 4: Simplify right side
    7,918.20x = 47,877,130.86
  5. Step 5: Solve for x
    x = 47,877,130.86/7,918.20
  6. Step 6: Final answer
    x = 6,046.47

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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.