Home / 10,328.92-15,391.72-9,705.56

Finding the Fourth Proportional to 10,328.92, 15,391.72 and 9,705.56

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Solution

The fourth proportional to 10,328.92, 15,391.72 and 9,705.56 is: 14,462.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,328.92 : 15,391.72 = 9,705.56 : x
  2. Step 2: Convert to fraction form
    10,328.92/15,391.72 = 9,705.56/x
  3. Step 3: Cross multiply
    10,328.92x = 15,391.72 × 9,705.56
  4. Step 4: Simplify right side
    10,328.92x = 149,385,261.96
  5. Step 5: Solve for x
    x = 149,385,261.96/10,328.92
  6. Step 6: Final answer
    x = 14,462.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.