Home / 8,700.64-13,050.48-3,505.12

Finding the Fourth Proportional to 8,700.64, 13,050.48 and 3,505.12

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Solution

The fourth proportional to 8,700.64, 13,050.48 and 3,505.12 is: 5,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,700.64 : 13,050.48 = 3,505.12 : x
  2. Step 2: Convert to fraction form
    8,700.64/13,050.48 = 3,505.12/x
  3. Step 3: Cross multiply
    8,700.64x = 13,050.48 × 3,505.12
  4. Step 4: Simplify right side
    8,700.64x = 45,743,498.46
  5. Step 5: Solve for x
    x = 45,743,498.46/8,700.64
  6. Step 6: Final answer
    x = 5,257.49

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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.