Home / 8,699.28-12,006.54-5,164.44

Finding the Fourth Proportional to 8,699.28, 12,006.54 and 5,164.44

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Solution

The fourth proportional to 8,699.28, 12,006.54 and 5,164.44 is: 7,127.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,699.28 : 12,006.54 = 5,164.44 : x
  2. Step 2: Convert to fraction form
    8,699.28/12,006.54 = 5,164.44/x
  3. Step 3: Cross multiply
    8,699.28x = 12,006.54 × 5,164.44
  4. Step 4: Simplify right side
    8,699.28x = 62,007,055.44
  5. Step 5: Solve for x
    x = 62,007,055.44/8,699.28
  6. Step 6: Final answer
    x = 7,127.84

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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.