Home / 13,629.02-20,432.36-7,057.08

Finding the Fourth Proportional to 13,629.02, 20,432.36 and 7,057.08

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Solution

The fourth proportional to 13,629.02, 20,432.36 and 7,057.08 is: 10,579.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.02 : 20,432.36 = 7,057.08 : x
  2. Step 2: Convert to fraction form
    13,629.02/20,432.36 = 7,057.08/x
  3. Step 3: Cross multiply
    13,629.02x = 20,432.36 × 7,057.08
  4. Step 4: Simplify right side
    13,629.02x = 144,192,799.11
  5. Step 5: Solve for x
    x = 144,192,799.11/13,629.02
  6. Step 6: Final answer
    x = 10,579.84

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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.