Home / 10,606.40-15,915.06-4,371.02

Finding the Fourth Proportional to 10,606.40, 15,915.06 and 4,371.02

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Solution

The fourth proportional to 10,606.40, 15,915.06 and 4,371.02 is: 6,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,606.40 : 15,915.06 = 4,371.02 : x
  2. Step 2: Convert to fraction form
    10,606.40/15,915.06 = 4,371.02/x
  3. Step 3: Cross multiply
    10,606.40x = 15,915.06 × 4,371.02
  4. Step 4: Simplify right side
    10,606.40x = 69,565,045.56
  5. Step 5: Solve for x
    x = 69,565,045.56/10,606.40
  6. Step 6: Final answer
    x = 6,558.78

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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.