Home / 13,546.90-20,320.35-11,700.10

Finding the Fourth Proportional to 13,546.90, 20,320.35 and 11,700.10

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Solution

The fourth proportional to 13,546.90, 20,320.35 and 11,700.10 is: 17,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,546.90 : 20,320.35 = 11,700.10 : x
  2. Step 2: Convert to fraction form
    13,546.90/20,320.35 = 11,700.10/x
  3. Step 3: Cross multiply
    13,546.90x = 20,320.35 × 11,700.10
  4. Step 4: Simplify right side
    13,546.90x = 237,750,127.04
  5. Step 5: Solve for x
    x = 237,750,127.04/13,546.90
  6. Step 6: Final answer
    x = 17,550.15

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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.