Home / 8,064.25-11,129.13-5,370.79

Finding the Fourth Proportional to 8,064.25, 11,129.13 and 5,370.79

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Solution

The fourth proportional to 8,064.25, 11,129.13 and 5,370.79 is: 7,412.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064.25 : 11,129.13 = 5,370.79 : x
  2. Step 2: Convert to fraction form
    8,064.25/11,129.13 = 5,370.79/x
  3. Step 3: Cross multiply
    8,064.25x = 11,129.13 × 5,370.79
  4. Step 4: Simplify right side
    8,064.25x = 59,772,220.11
  5. Step 5: Solve for x
    x = 59,772,220.11/8,064.25
  6. Step 6: Final answer
    x = 7,412.00

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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.