Home / 12,279.36-18,419.04-5,349

Finding the Fourth Proportional to 12,279.36, 18,419.04 and 5,349

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Solution

The fourth proportional to 12,279.36, 18,419.04 and 5,349 is: 8,023.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,279.36 : 18,419.04 = 5,349 : x
  2. Step 2: Convert to fraction form
    12,279.36/18,419.04 = 5,349/x
  3. Step 3: Cross multiply
    12,279.36x = 18,419.04 × 5,349
  4. Step 4: Simplify right side
    12,279.36x = 98,523,444.96
  5. Step 5: Solve for x
    x = 98,523,444.96/12,279.36
  6. Step 6: Final answer
    x = 8,023.50

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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.