Home / 7,146.48-10,700.40-5,174.16

Finding the Fourth Proportional to 7,146.48, 10,700.40 and 5,174.16

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Solution

The fourth proportional to 7,146.48, 10,700.40 and 5,174.16 is: 7,747.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.48 : 10,700.40 = 5,174.16 : x
  2. Step 2: Convert to fraction form
    7,146.48/10,700.40 = 5,174.16/x
  3. Step 3: Cross multiply
    7,146.48x = 10,700.40 × 5,174.16
  4. Step 4: Simplify right side
    7,146.48x = 55,365,581.66
  5. Step 5: Solve for x
    x = 55,365,581.66/7,146.48
  6. Step 6: Final answer
    x = 7,747.25

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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.