Home / 13,747.58-20,607.29-5,424.23

Finding the Fourth Proportional to 13,747.58, 20,607.29 and 5,424.23

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Solution

The fourth proportional to 13,747.58, 20,607.29 and 5,424.23 is: 8,130.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,747.58 : 20,607.29 = 5,424.23 : x
  2. Step 2: Convert to fraction form
    13,747.58/20,607.29 = 5,424.23/x
  3. Step 3: Cross multiply
    13,747.58x = 20,607.29 × 5,424.23
  4. Step 4: Simplify right side
    13,747.58x = 111,778,653.52
  5. Step 5: Solve for x
    x = 111,778,653.52/13,747.58
  6. Step 6: Final answer
    x = 8,130.79

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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.