Home / 8,130.20-11,219.88-4,773.28

Finding the Fourth Proportional to 8,130.20, 11,219.88 and 4,773.28

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Solution

The fourth proportional to 8,130.20, 11,219.88 and 4,773.28 is: 6,587.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.20 : 11,219.88 = 4,773.28 : x
  2. Step 2: Convert to fraction form
    8,130.20/11,219.88 = 4,773.28/x
  3. Step 3: Cross multiply
    8,130.20x = 11,219.88 × 4,773.28
  4. Step 4: Simplify right side
    8,130.20x = 53,555,628.81
  5. Step 5: Solve for x
    x = 53,555,628.81/8,130.20
  6. Step 6: Final answer
    x = 6,587.25

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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.