Home / 8,905.90-12,289.40-4,927.02

Finding the Fourth Proportional to 8,905.90, 12,289.40 and 4,927.02

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Solution

The fourth proportional to 8,905.90, 12,289.40 and 4,927.02 is: 6,798.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.90 : 12,289.40 = 4,927.02 : x
  2. Step 2: Convert to fraction form
    8,905.90/12,289.40 = 4,927.02/x
  3. Step 3: Cross multiply
    8,905.90x = 12,289.40 × 4,927.02
  4. Step 4: Simplify right side
    8,905.90x = 60,550,119.59
  5. Step 5: Solve for x
    x = 60,550,119.59/8,905.90
  6. Step 6: Final answer
    x = 6,798.88

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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.