Home / 13,346.40-20,020-4,581.18

Finding the Fourth Proportional to 13,346.40, 20,020 and 4,581.18

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Solution

The fourth proportional to 13,346.40, 20,020 and 4,581.18 is: 6,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,346.40 : 20,020 = 4,581.18 : x
  2. Step 2: Convert to fraction form
    13,346.40/20,020 = 4,581.18/x
  3. Step 3: Cross multiply
    13,346.40x = 20,020 × 4,581.18
  4. Step 4: Simplify right side
    13,346.40x = 91,715,223.60
  5. Step 5: Solve for x
    x = 91,715,223.60/13,346.40
  6. Step 6: Final answer
    x = 6,871.91

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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.