Home / 13,570.38-20,365.77-5,784.54

Finding the Fourth Proportional to 13,570.38, 20,365.77 and 5,784.54

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Solution

The fourth proportional to 13,570.38, 20,365.77 and 5,784.54 is: 8,681.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,570.38 : 20,365.77 = 5,784.54 : x
  2. Step 2: Convert to fraction form
    13,570.38/20,365.77 = 5,784.54/x
  3. Step 3: Cross multiply
    13,570.38x = 20,365.77 × 5,784.54
  4. Step 4: Simplify right side
    13,570.38x = 117,806,611.20
  5. Step 5: Solve for x
    x = 117,806,611.20/13,570.38
  6. Step 6: Final answer
    x = 8,681.16

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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.