Home / 5,416.16-8,126.80-5,328.80

Finding the Fourth Proportional to 5,416.16, 8,126.80 and 5,328.80

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Solution

The fourth proportional to 5,416.16, 8,126.80 and 5,328.80 is: 7,995.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.16 : 8,126.80 = 5,328.80 : x
  2. Step 2: Convert to fraction form
    5,416.16/8,126.80 = 5,328.80/x
  3. Step 3: Cross multiply
    5,416.16x = 8,126.80 × 5,328.80
  4. Step 4: Simplify right side
    5,416.16x = 43,306,091.84
  5. Step 5: Solve for x
    x = 43,306,091.84/5,416.16
  6. Step 6: Final answer
    x = 7,995.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.