Home / 6,117.34-8,378.68-5,758.28

Finding the Fourth Proportional to 6,117.34, 8,378.68 and 5,758.28

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Solution

The fourth proportional to 6,117.34, 8,378.68 and 5,758.28 is: 7,886.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,117.34 : 8,378.68 = 5,758.28 : x
  2. Step 2: Convert to fraction form
    6,117.34/8,378.68 = 5,758.28/x
  3. Step 3: Cross multiply
    6,117.34x = 8,378.68 × 5,758.28
  4. Step 4: Simplify right side
    6,117.34x = 48,246,785.47
  5. Step 5: Solve for x
    x = 48,246,785.47/6,117.34
  6. Step 6: Final answer
    x = 7,886.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.