Home / 13,623.68-20,430.88-5,303.04

Finding the Fourth Proportional to 13,623.68, 20,430.88 and 5,303.04

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Solution

The fourth proportional to 13,623.68, 20,430.88 and 5,303.04 is: 7,952.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,623.68 : 20,430.88 = 5,303.04 : x
  2. Step 2: Convert to fraction form
    13,623.68/20,430.88 = 5,303.04/x
  3. Step 3: Cross multiply
    13,623.68x = 20,430.88 × 5,303.04
  4. Step 4: Simplify right side
    13,623.68x = 108,345,773.88
  5. Step 5: Solve for x
    x = 108,345,773.88/13,623.68
  6. Step 6: Final answer
    x = 7,952.75

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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.