Home / 8,162.15-11,261.16-4,975.20

Finding the Fourth Proportional to 8,162.15, 11,261.16 and 4,975.20

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Solution

The fourth proportional to 8,162.15, 11,261.16 and 4,975.20 is: 6,864.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.15 : 11,261.16 = 4,975.20 : x
  2. Step 2: Convert to fraction form
    8,162.15/11,261.16 = 4,975.20/x
  3. Step 3: Cross multiply
    8,162.15x = 11,261.16 × 4,975.20
  4. Step 4: Simplify right side
    8,162.15x = 56,026,523.23
  5. Step 5: Solve for x
    x = 56,026,523.23/8,162.15
  6. Step 6: Final answer
    x = 6,864.19

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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.