Home / 9,354.05-12,907.44-5,162.30

Finding the Fourth Proportional to 9,354.05, 12,907.44 and 5,162.30

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Solution

The fourth proportional to 9,354.05, 12,907.44 and 5,162.30 is: 7,123.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,354.05 : 12,907.44 = 5,162.30 : x
  2. Step 2: Convert to fraction form
    9,354.05/12,907.44 = 5,162.30/x
  3. Step 3: Cross multiply
    9,354.05x = 12,907.44 × 5,162.30
  4. Step 4: Simplify right side
    9,354.05x = 66,632,077.51
  5. Step 5: Solve for x
    x = 66,632,077.51/9,354.05
  6. Step 6: Final answer
    x = 7,123.34

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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.