Home / 13,417.20-20,102.94-8,730.09

Finding the Fourth Proportional to 13,417.20, 20,102.94 and 8,730.09

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Solution

The fourth proportional to 13,417.20, 20,102.94 and 8,730.09 is: 13,080.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,417.20 : 20,102.94 = 8,730.09 : x
  2. Step 2: Convert to fraction form
    13,417.20/20,102.94 = 8,730.09/x
  3. Step 3: Cross multiply
    13,417.20x = 20,102.94 × 8,730.09
  4. Step 4: Simplify right side
    13,417.20x = 175,500,475.46
  5. Step 5: Solve for x
    x = 175,500,475.46/13,417.20
  6. Step 6: Final answer
    x = 13,080.26

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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.