Home / 13,857.83-20,772.91-4,970.75

Finding the Fourth Proportional to 13,857.83, 20,772.91 and 4,970.75

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Solution

The fourth proportional to 13,857.83, 20,772.91 and 4,970.75 is: 7,451.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.83 : 20,772.91 = 4,970.75 : x
  2. Step 2: Convert to fraction form
    13,857.83/20,772.91 = 4,970.75/x
  3. Step 3: Cross multiply
    13,857.83x = 20,772.91 × 4,970.75
  4. Step 4: Simplify right side
    13,857.83x = 103,257,052.71
  5. Step 5: Solve for x
    x = 103,257,052.71/13,857.83
  6. Step 6: Final answer
    x = 7,451.17

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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.