Home / 13,263.21-19,899.99-5,470.20

Finding the Fourth Proportional to 13,263.21, 19,899.99 and 5,470.20

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Solution

The fourth proportional to 13,263.21, 19,899.99 and 5,470.20 is: 8,207.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.21 : 19,899.99 = 5,470.20 : x
  2. Step 2: Convert to fraction form
    13,263.21/19,899.99 = 5,470.20/x
  3. Step 3: Cross multiply
    13,263.21x = 19,899.99 × 5,470.20
  4. Step 4: Simplify right side
    13,263.21x = 108,856,925.30
  5. Step 5: Solve for x
    x = 108,856,925.30/13,263.21
  6. Step 6: Final answer
    x = 8,207.43

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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.