Home / 13,613.04-20,415.23-4,376.88

Finding the Fourth Proportional to 13,613.04, 20,415.23 and 4,376.88

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Solution

The fourth proportional to 13,613.04, 20,415.23 and 4,376.88 is: 6,563.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,613.04 : 20,415.23 = 4,376.88 : x
  2. Step 2: Convert to fraction form
    13,613.04/20,415.23 = 4,376.88/x
  3. Step 3: Cross multiply
    13,613.04x = 20,415.23 × 4,376.88
  4. Step 4: Simplify right side
    13,613.04x = 89,355,011.88
  5. Step 5: Solve for x
    x = 89,355,011.88/13,613.04
  6. Step 6: Final answer
    x = 6,563.93

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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.