Home / 10,315.28-14,237.16-6,122.72

Finding the Fourth Proportional to 10,315.28, 14,237.16 and 6,122.72

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Solution

The fourth proportional to 10,315.28, 14,237.16 and 6,122.72 is: 8,450.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,315.28 : 14,237.16 = 6,122.72 : x
  2. Step 2: Convert to fraction form
    10,315.28/14,237.16 = 6,122.72/x
  3. Step 3: Cross multiply
    10,315.28x = 14,237.16 × 6,122.72
  4. Step 4: Simplify right side
    10,315.28x = 87,170,144.28
  5. Step 5: Solve for x
    x = 87,170,144.28/10,315.28
  6. Step 6: Final answer
    x = 8,450.58

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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.