Home / 9,357.06-12,911.58-5,165.28

Finding the Fourth Proportional to 9,357.06, 12,911.58 and 5,165.28

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Solution

The fourth proportional to 9,357.06, 12,911.58 and 5,165.28 is: 7,127.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.06 : 12,911.58 = 5,165.28 : x
  2. Step 2: Convert to fraction form
    9,357.06/12,911.58 = 5,165.28/x
  3. Step 3: Cross multiply
    9,357.06x = 12,911.58 × 5,165.28
  4. Step 4: Simplify right side
    9,357.06x = 66,691,925.94
  5. Step 5: Solve for x
    x = 66,691,925.94/9,357.06
  6. Step 6: Final answer
    x = 7,127.44

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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.