Home / 8,776.12-12,110.40-4,797.28

Finding the Fourth Proportional to 8,776.12, 12,110.40 and 4,797.28

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Solution

The fourth proportional to 8,776.12, 12,110.40 and 4,797.28 is: 6,619.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,776.12 : 12,110.40 = 4,797.28 : x
  2. Step 2: Convert to fraction form
    8,776.12/12,110.40 = 4,797.28/x
  3. Step 3: Cross multiply
    8,776.12x = 12,110.40 × 4,797.28
  4. Step 4: Simplify right side
    8,776.12x = 58,096,979.71
  5. Step 5: Solve for x
    x = 58,096,979.71/8,776.12
  6. Step 6: Final answer
    x = 6,619.89

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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.