Home / 10,431.84-14,395.44-6,240.48

Finding the Fourth Proportional to 10,431.84, 14,395.44 and 6,240.48

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Solution

The fourth proportional to 10,431.84, 14,395.44 and 6,240.48 is: 8,611.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.84 : 14,395.44 = 6,240.48 : x
  2. Step 2: Convert to fraction form
    10,431.84/14,395.44 = 6,240.48/x
  3. Step 3: Cross multiply
    10,431.84x = 14,395.44 × 6,240.48
  4. Step 4: Simplify right side
    10,431.84x = 89,834,455.41
  5. Step 5: Solve for x
    x = 89,834,455.41/10,431.84
  6. Step 6: Final answer
    x = 8,611.56

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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.