Home / 14,094.25-19,449.85-7,720.79

Finding the Fourth Proportional to 14,094.25, 19,449.85 and 7,720.79

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Solution

The fourth proportional to 14,094.25, 19,449.85 and 7,720.79 is: 10,654.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,094.25 : 19,449.85 = 7,720.79 : x
  2. Step 2: Convert to fraction form
    14,094.25/19,449.85 = 7,720.79/x
  3. Step 3: Cross multiply
    14,094.25x = 19,449.85 × 7,720.79
  4. Step 4: Simplify right side
    14,094.25x = 150,168,071.53
  5. Step 5: Solve for x
    x = 150,168,071.53/14,094.25
  6. Step 6: Final answer
    x = 10,654.57

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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.