Home / 13,345.11-20,017.28-3,484.39

Finding the Fourth Proportional to 13,345.11, 20,017.28 and 3,484.39

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Solution

The fourth proportional to 13,345.11, 20,017.28 and 3,484.39 is: 5,226.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.11 : 20,017.28 = 3,484.39 : x
  2. Step 2: Convert to fraction form
    13,345.11/20,017.28 = 3,484.39/x
  3. Step 3: Cross multiply
    13,345.11x = 20,017.28 × 3,484.39
  4. Step 4: Simplify right side
    13,345.11x = 69,748,052.96
  5. Step 5: Solve for x
    x = 69,748,052.96/13,345.11
  6. Step 6: Final answer
    x = 5,226.49

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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.