Home / 8,390.85-11,580.02-5,033.79

Finding the Fourth Proportional to 8,390.85, 11,580.02 and 5,033.79

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Solution

The fourth proportional to 8,390.85, 11,580.02 and 5,033.79 is: 6,947.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390.85 : 11,580.02 = 5,033.79 : x
  2. Step 2: Convert to fraction form
    8,390.85/11,580.02 = 5,033.79/x
  3. Step 3: Cross multiply
    8,390.85x = 11,580.02 × 5,033.79
  4. Step 4: Simplify right side
    8,390.85x = 58,291,363.71
  5. Step 5: Solve for x
    x = 58,291,363.71/8,390.85
  6. Step 6: Final answer
    x = 6,947.02

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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.