Home / 7,916.96-11,864.08-5,820.56

Finding the Fourth Proportional to 7,916.96, 11,864.08 and 5,820.56

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Solution

The fourth proportional to 7,916.96, 11,864.08 and 5,820.56 is: 8,722.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,916.96 : 11,864.08 = 5,820.56 : x
  2. Step 2: Convert to fraction form
    7,916.96/11,864.08 = 5,820.56/x
  3. Step 3: Cross multiply
    7,916.96x = 11,864.08 × 5,820.56
  4. Step 4: Simplify right side
    7,916.96x = 69,055,589.48
  5. Step 5: Solve for x
    x = 69,055,589.48/7,916.96
  6. Step 6: Final answer
    x = 8,722.49

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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.