Home / 8,079.64-11,145.35-4,721.74

Finding the Fourth Proportional to 8,079.64, 11,145.35 and 4,721.74

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Solution

The fourth proportional to 8,079.64, 11,145.35 and 4,721.74 is: 6,513.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.64 : 11,145.35 = 4,721.74 : x
  2. Step 2: Convert to fraction form
    8,079.64/11,145.35 = 4,721.74/x
  3. Step 3: Cross multiply
    8,079.64x = 11,145.35 × 4,721.74
  4. Step 4: Simplify right side
    8,079.64x = 52,625,444.91
  5. Step 5: Solve for x
    x = 52,625,444.91/8,079.64
  6. Step 6: Final answer
    x = 6,513.34

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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.