Home / 8,905.89-12,289.95-4,926.90

Finding the Fourth Proportional to 8,905.89, 12,289.95 and 4,926.90

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Solution

The fourth proportional to 8,905.89, 12,289.95 and 4,926.90 is: 6,799.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,905.89 : 12,289.95 = 4,926.90 : x
  2. Step 2: Convert to fraction form
    8,905.89/12,289.95 = 4,926.90/x
  3. Step 3: Cross multiply
    8,905.89x = 12,289.95 × 4,926.90
  4. Step 4: Simplify right side
    8,905.89x = 60,551,354.66
  5. Step 5: Solve for x
    x = 60,551,354.66/8,905.89
  6. Step 6: Final answer
    x = 6,799.02

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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.