Home / 10,440.92-14,408.40-5,725.28

Finding the Fourth Proportional to 10,440.92, 14,408.40 and 5,725.28

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Solution

The fourth proportional to 10,440.92, 14,408.40 and 5,725.28 is: 7,900.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,440.92 : 14,408.40 = 5,725.28 : x
  2. Step 2: Convert to fraction form
    10,440.92/14,408.40 = 5,725.28/x
  3. Step 3: Cross multiply
    10,440.92x = 14,408.40 × 5,725.28
  4. Step 4: Simplify right side
    10,440.92x = 82,492,124.35
  5. Step 5: Solve for x
    x = 82,492,124.35/10,440.92
  6. Step 6: Final answer
    x = 7,900.85

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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.