Home / 15,542.20-23,313.30-13,209.40

Finding the Fourth Proportional to 15,542.20, 23,313.30 and 13,209.40

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Solution

The fourth proportional to 15,542.20, 23,313.30 and 13,209.40 is: 19,814.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.20 : 23,313.30 = 13,209.40 : x
  2. Step 2: Convert to fraction form
    15,542.20/23,313.30 = 13,209.40/x
  3. Step 3: Cross multiply
    15,542.20x = 23,313.30 × 13,209.40
  4. Step 4: Simplify right side
    15,542.20x = 307,954,705.02
  5. Step 5: Solve for x
    x = 307,954,705.02/15,542.20
  6. Step 6: Final answer
    x = 19,814.10

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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.