Home / 10,712.16-14,771.52-7,176.16

Finding the Fourth Proportional to 10,712.16, 14,771.52 and 7,176.16

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Solution

The fourth proportional to 10,712.16, 14,771.52 and 7,176.16 is: 9,895.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.16 : 14,771.52 = 7,176.16 : x
  2. Step 2: Convert to fraction form
    10,712.16/14,771.52 = 7,176.16/x
  3. Step 3: Cross multiply
    10,712.16x = 14,771.52 × 7,176.16
  4. Step 4: Simplify right side
    10,712.16x = 106,002,790.96
  5. Step 5: Solve for x
    x = 106,002,790.96/10,712.16
  6. Step 6: Final answer
    x = 9,895.56

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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.