Home / 13,746.01-20,605.14-5,421.44

Finding the Fourth Proportional to 13,746.01, 20,605.14 and 5,421.44

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Solution

The fourth proportional to 13,746.01, 20,605.14 and 5,421.44 is: 8,126.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,746.01 : 20,605.14 = 5,421.44 : x
  2. Step 2: Convert to fraction form
    13,746.01/20,605.14 = 5,421.44/x
  3. Step 3: Cross multiply
    13,746.01x = 20,605.14 × 5,421.44
  4. Step 4: Simplify right side
    13,746.01x = 111,709,427.18
  5. Step 5: Solve for x
    x = 111,709,427.18/13,746.01
  6. Step 6: Final answer
    x = 8,126.68

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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.