Home / 13,412.55-20,120.85-4,646.34

Finding the Fourth Proportional to 13,412.55, 20,120.85 and 4,646.34

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Solution

The fourth proportional to 13,412.55, 20,120.85 and 4,646.34 is: 6,970.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.55 : 20,120.85 = 4,646.34 : x
  2. Step 2: Convert to fraction form
    13,412.55/20,120.85 = 4,646.34/x
  3. Step 3: Cross multiply
    13,412.55x = 20,120.85 × 4,646.34
  4. Step 4: Simplify right side
    13,412.55x = 93,488,310.19
  5. Step 5: Solve for x
    x = 93,488,310.19/13,412.55
  6. Step 6: Final answer
    x = 6,970.21

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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.