Home / 14,985.04-20,680.68-8,272.12

Finding the Fourth Proportional to 14,985.04, 20,680.68 and 8,272.12

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Solution

The fourth proportional to 14,985.04, 20,680.68 and 8,272.12 is: 11,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,985.04 : 20,680.68 = 8,272.12 : x
  2. Step 2: Convert to fraction form
    14,985.04/20,680.68 = 8,272.12/x
  3. Step 3: Cross multiply
    14,985.04x = 20,680.68 × 8,272.12
  4. Step 4: Simplify right side
    14,985.04x = 171,073,066.64
  5. Step 5: Solve for x
    x = 171,073,066.64/14,985.04
  6. Step 6: Final answer
    x = 11,416.26

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.