Home / 10,120.04-15,165.38-5,436.36

Finding the Fourth Proportional to 10,120.04, 15,165.38 and 5,436.36

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Solution

The fourth proportional to 10,120.04, 15,165.38 and 5,436.36 is: 8,146.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.04 : 15,165.38 = 5,436.36 : x
  2. Step 2: Convert to fraction form
    10,120.04/15,165.38 = 5,436.36/x
  3. Step 3: Cross multiply
    10,120.04x = 15,165.38 × 5,436.36
  4. Step 4: Simplify right side
    10,120.04x = 82,444,465.22
  5. Step 5: Solve for x
    x = 82,444,465.22/10,120.04
  6. Step 6: Final answer
    x = 8,146.65

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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.