Home / 7,580.89-11,364.85-4,978.09

Finding the Fourth Proportional to 7,580.89, 11,364.85 and 4,978.09

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Solution

The fourth proportional to 7,580.89, 11,364.85 and 4,978.09 is: 7,462.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,580.89 : 11,364.85 = 4,978.09 : x
  2. Step 2: Convert to fraction form
    7,580.89/11,364.85 = 4,978.09/x
  3. Step 3: Cross multiply
    7,580.89x = 11,364.85 × 4,978.09
  4. Step 4: Simplify right side
    7,580.89x = 56,575,246.14
  5. Step 5: Solve for x
    x = 56,575,246.14/7,580.89
  6. Step 6: Final answer
    x = 7,462.88

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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.