Home / 8,735.12-12,054.96-5,151.28

Finding the Fourth Proportional to 8,735.12, 12,054.96 and 5,151.28

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Solution

The fourth proportional to 8,735.12, 12,054.96 and 5,151.28 is: 7,109.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,735.12 : 12,054.96 = 5,151.28 : x
  2. Step 2: Convert to fraction form
    8,735.12/12,054.96 = 5,151.28/x
  3. Step 3: Cross multiply
    8,735.12x = 12,054.96 × 5,151.28
  4. Step 4: Simplify right side
    8,735.12x = 62,098,474.35
  5. Step 5: Solve for x
    x = 62,098,474.35/8,735.12
  6. Step 6: Final answer
    x = 7,109.06

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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.