Home / 13,647.02-20,458.36-5,325.10

Finding the Fourth Proportional to 13,647.02, 20,458.36 and 5,325.10

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Solution

The fourth proportional to 13,647.02, 20,458.36 and 5,325.10 is: 7,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.02 : 20,458.36 = 5,325.10 : x
  2. Step 2: Convert to fraction form
    13,647.02/20,458.36 = 5,325.10/x
  3. Step 3: Cross multiply
    13,647.02x = 20,458.36 × 5,325.10
  4. Step 4: Simplify right side
    13,647.02x = 108,942,823.13
  5. Step 5: Solve for x
    x = 108,942,823.13/13,647.02
  6. Step 6: Final answer
    x = 7,982.90

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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.