Home / 10,972.60-16,434.60-4,395.40

Finding the Fourth Proportional to 10,972.60, 16,434.60 and 4,395.40

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Solution

The fourth proportional to 10,972.60, 16,434.60 and 4,395.40 is: 6,583.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.60 : 16,434.60 = 4,395.40 : x
  2. Step 2: Convert to fraction form
    10,972.60/16,434.60 = 4,395.40/x
  3. Step 3: Cross multiply
    10,972.60x = 16,434.60 × 4,395.40
  4. Step 4: Simplify right side
    10,972.60x = 72,236,640.84
  5. Step 5: Solve for x
    x = 72,236,640.84/10,972.60
  6. Step 6: Final answer
    x = 6,583.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.