Home / 13,086.26-19,621.93-8,931.29

Finding the Fourth Proportional to 13,086.26, 19,621.93 and 8,931.29

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Solution

The fourth proportional to 13,086.26, 19,621.93 and 8,931.29 is: 13,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,086.26 : 19,621.93 = 8,931.29 : x
  2. Step 2: Convert to fraction form
    13,086.26/19,621.93 = 8,931.29/x
  3. Step 3: Cross multiply
    13,086.26x = 19,621.93 × 8,931.29
  4. Step 4: Simplify right side
    13,086.26x = 175,249,193.96
  5. Step 5: Solve for x
    x = 175,249,193.96/13,086.26
  6. Step 6: Final answer
    x = 13,391.85

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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.