Home / 13,668.20-20,513.16-6,276.08

Finding the Fourth Proportional to 13,668.20, 20,513.16 and 6,276.08

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Solution

The fourth proportional to 13,668.20, 20,513.16 and 6,276.08 is: 9,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,668.20 : 20,513.16 = 6,276.08 : x
  2. Step 2: Convert to fraction form
    13,668.20/20,513.16 = 6,276.08/x
  3. Step 3: Cross multiply
    13,668.20x = 20,513.16 × 6,276.08
  4. Step 4: Simplify right side
    13,668.20x = 128,742,233.21
  5. Step 5: Solve for x
    x = 128,742,233.21/13,668.20
  6. Step 6: Final answer
    x = 9,419.11

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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.