Home / 11,141.04-15,367.32-7,155.84

Finding the Fourth Proportional to 11,141.04, 15,367.32 and 7,155.84

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Solution

The fourth proportional to 11,141.04, 15,367.32 and 7,155.84 is: 9,870.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,141.04 : 15,367.32 = 7,155.84 : x
  2. Step 2: Convert to fraction form
    11,141.04/15,367.32 = 7,155.84/x
  3. Step 3: Cross multiply
    11,141.04x = 15,367.32 × 7,155.84
  4. Step 4: Simplify right side
    11,141.04x = 109,966,083.15
  5. Step 5: Solve for x
    x = 109,966,083.15/11,141.04
  6. Step 6: Final answer
    x = 9,870.36

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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.