Home / 13,209.64-19,814.58-5,711.80

Finding the Fourth Proportional to 13,209.64, 19,814.58 and 5,711.80

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Solution

The fourth proportional to 13,209.64, 19,814.58 and 5,711.80 is: 8,567.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,209.64 : 19,814.58 = 5,711.80 : x
  2. Step 2: Convert to fraction form
    13,209.64/19,814.58 = 5,711.80/x
  3. Step 3: Cross multiply
    13,209.64x = 19,814.58 × 5,711.80
  4. Step 4: Simplify right side
    13,209.64x = 113,176,918.04
  5. Step 5: Solve for x
    x = 113,176,918.04/13,209.64
  6. Step 6: Final answer
    x = 8,567.75

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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.