Home / 13,599.85-20,398.16-3,740.13

Finding the Fourth Proportional to 13,599.85, 20,398.16 and 3,740.13

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Solution

The fourth proportional to 13,599.85, 20,398.16 and 3,740.13 is: 5,609.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,599.85 : 20,398.16 = 3,740.13 : x
  2. Step 2: Convert to fraction form
    13,599.85/20,398.16 = 3,740.13/x
  3. Step 3: Cross multiply
    13,599.85x = 20,398.16 × 3,740.13
  4. Step 4: Simplify right side
    13,599.85x = 76,291,751.46
  5. Step 5: Solve for x
    x = 76,291,751.46/13,599.85
  6. Step 6: Final answer
    x = 5,609.75

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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.