Home / 8,921.70-13,384.56-6,149.46

Finding the Fourth Proportional to 8,921.70, 13,384.56 and 6,149.46

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Solution

The fourth proportional to 8,921.70, 13,384.56 and 6,149.46 is: 9,225.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.70 : 13,384.56 = 6,149.46 : x
  2. Step 2: Convert to fraction form
    8,921.70/13,384.56 = 6,149.46/x
  3. Step 3: Cross multiply
    8,921.70x = 13,384.56 × 6,149.46
  4. Step 4: Simplify right side
    8,921.70x = 82,307,816.34
  5. Step 5: Solve for x
    x = 82,307,816.34/8,921.70
  6. Step 6: Final answer
    x = 9,225.58

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1.5x scale

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.