Home / 7,720.64-11,580.65-5,373.87

Finding the Fourth Proportional to 7,720.64, 11,580.65 and 5,373.87

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Solution

The fourth proportional to 7,720.64, 11,580.65 and 5,373.87 is: 8,060.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,720.64 : 11,580.65 = 5,373.87 : x
  2. Step 2: Convert to fraction form
    7,720.64/11,580.65 = 5,373.87/x
  3. Step 3: Cross multiply
    7,720.64x = 11,580.65 × 5,373.87
  4. Step 4: Simplify right side
    7,720.64x = 62,232,907.62
  5. Step 5: Solve for x
    x = 62,232,907.62/7,720.64
  6. Step 6: Final answer
    x = 8,060.59

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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.