Home / 8,970.18-12,378.56-4,936.97

Finding the Fourth Proportional to 8,970.18, 12,378.56 and 4,936.97

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Solution

The fourth proportional to 8,970.18, 12,378.56 and 4,936.97 is: 6,812.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,970.18 : 12,378.56 = 4,936.97 : x
  2. Step 2: Convert to fraction form
    8,970.18/12,378.56 = 4,936.97/x
  3. Step 3: Cross multiply
    8,970.18x = 12,378.56 × 4,936.97
  4. Step 4: Simplify right side
    8,970.18x = 61,112,492.79
  5. Step 5: Solve for x
    x = 61,112,492.79/8,970.18
  6. Step 6: Final answer
    x = 6,812.85

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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.