Home / 10,821.50-14,928.45-6,342.46

Finding the Fourth Proportional to 10,821.50, 14,928.45 and 6,342.46

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Solution

The fourth proportional to 10,821.50, 14,928.45 and 6,342.46 is: 8,749.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,821.50 : 14,928.45 = 6,342.46 : x
  2. Step 2: Convert to fraction form
    10,821.50/14,928.45 = 6,342.46/x
  3. Step 3: Cross multiply
    10,821.50x = 14,928.45 × 6,342.46
  4. Step 4: Simplify right side
    10,821.50x = 94,683,096.99
  5. Step 5: Solve for x
    x = 94,683,096.99/10,821.50
  6. Step 6: Final answer
    x = 8,749.54

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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.