Home / 13,191.40-19,772.70-5,794.60

Finding the Fourth Proportional to 13,191.40, 19,772.70 and 5,794.60

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Solution

The fourth proportional to 13,191.40, 19,772.70 and 5,794.60 is: 8,685.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191.40 : 19,772.70 = 5,794.60 : x
  2. Step 2: Convert to fraction form
    13,191.40/19,772.70 = 5,794.60/x
  3. Step 3: Cross multiply
    13,191.40x = 19,772.70 × 5,794.60
  4. Step 4: Simplify right side
    13,191.40x = 114,574,887.42
  5. Step 5: Solve for x
    x = 114,574,887.42/13,191.40
  6. Step 6: Final answer
    x = 8,685.57

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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.