Home / 10,129.14-15,176.70-7,192.89

Finding the Fourth Proportional to 10,129.14, 15,176.70 and 7,192.89

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Solution

The fourth proportional to 10,129.14, 15,176.70 and 7,192.89 is: 10,777.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.14 : 15,176.70 = 7,192.89 : x
  2. Step 2: Convert to fraction form
    10,129.14/15,176.70 = 7,192.89/x
  3. Step 3: Cross multiply
    10,129.14x = 15,176.70 × 7,192.89
  4. Step 4: Simplify right side
    10,129.14x = 109,164,333.66
  5. Step 5: Solve for x
    x = 109,164,333.66/10,129.14
  6. Step 6: Final answer
    x = 10,777.26

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1.5x scale

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.