Home / 13,345.13-20,017.70-3,484.33

Finding the Fourth Proportional to 13,345.13, 20,017.70 and 3,484.33

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Solution

The fourth proportional to 13,345.13, 20,017.70 and 3,484.33 is: 5,226.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345.13 : 20,017.70 = 3,484.33 : x
  2. Step 2: Convert to fraction form
    13,345.13/20,017.70 = 3,484.33/x
  3. Step 3: Cross multiply
    13,345.13x = 20,017.70 × 3,484.33
  4. Step 4: Simplify right side
    13,345.13x = 69,748,272.64
  5. Step 5: Solve for x
    x = 69,748,272.64/13,345.13
  6. Step 6: Final answer
    x = 5,226.50

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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.