Home / 10,371.40-14,308.98-6,388.36

Finding the Fourth Proportional to 10,371.40, 14,308.98 and 6,388.36

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Solution

The fourth proportional to 10,371.40, 14,308.98 and 6,388.36 is: 8,813.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,371.40 : 14,308.98 = 6,388.36 : x
  2. Step 2: Convert to fraction form
    10,371.40/14,308.98 = 6,388.36/x
  3. Step 3: Cross multiply
    10,371.40x = 14,308.98 × 6,388.36
  4. Step 4: Simplify right side
    10,371.40x = 91,410,915.47
  5. Step 5: Solve for x
    x = 91,410,915.47/10,371.40
  6. Step 6: Final answer
    x = 8,813.75

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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.