Home / 13,664.10-20,495.88-4,430.10

Finding the Fourth Proportional to 13,664.10, 20,495.88 and 4,430.10

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Solution

The fourth proportional to 13,664.10, 20,495.88 and 4,430.10 is: 6,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.10 : 20,495.88 = 4,430.10 : x
  2. Step 2: Convert to fraction form
    13,664.10/20,495.88 = 4,430.10/x
  3. Step 3: Cross multiply
    13,664.10x = 20,495.88 × 4,430.10
  4. Step 4: Simplify right side
    13,664.10x = 90,798,797.99
  5. Step 5: Solve for x
    x = 90,798,797.99/13,664.10
  6. Step 6: Final answer
    x = 6,645.06

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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.