Home / 8,729.12-13,089.14-4,284.80

Finding the Fourth Proportional to 8,729.12, 13,089.14 and 4,284.80

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Solution

The fourth proportional to 8,729.12, 13,089.14 and 4,284.80 is: 6,424.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.12 : 13,089.14 = 4,284.80 : x
  2. Step 2: Convert to fraction form
    8,729.12/13,089.14 = 4,284.80/x
  3. Step 3: Cross multiply
    8,729.12x = 13,089.14 × 4,284.80
  4. Step 4: Simplify right side
    8,729.12x = 56,084,349.46
  5. Step 5: Solve for x
    x = 56,084,349.46/8,729.12
  6. Step 6: Final answer
    x = 6,424.97

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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.