Home / 8,391.74-11,580.15-4,665.50

Finding the Fourth Proportional to 8,391.74, 11,580.15 and 4,665.50

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Solution

The fourth proportional to 8,391.74, 11,580.15 and 4,665.50 is: 6,438.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391.74 : 11,580.15 = 4,665.50 : x
  2. Step 2: Convert to fraction form
    8,391.74/11,580.15 = 4,665.50/x
  3. Step 3: Cross multiply
    8,391.74x = 11,580.15 × 4,665.50
  4. Step 4: Simplify right side
    8,391.74x = 54,027,189.83
  5. Step 5: Solve for x
    x = 54,027,189.83/8,391.74
  6. Step 6: Final answer
    x = 6,438.14

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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.