Home / 13,485.30-20,225.78-5,693.10

Finding the Fourth Proportional to 13,485.30, 20,225.78 and 5,693.10

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Solution

The fourth proportional to 13,485.30, 20,225.78 and 5,693.10 is: 8,538.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,485.30 : 20,225.78 = 5,693.10 : x
  2. Step 2: Convert to fraction form
    13,485.30/20,225.78 = 5,693.10/x
  3. Step 3: Cross multiply
    13,485.30x = 20,225.78 × 5,693.10
  4. Step 4: Simplify right side
    13,485.30x = 115,147,258.52
  5. Step 5: Solve for x
    x = 115,147,258.52/13,485.30
  6. Step 6: Final answer
    x = 8,538.73

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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.