Home / 11,139.04-15,378.96-6,953.44

Finding the Fourth Proportional to 11,139.04, 15,378.96 and 6,953.44

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Solution

The fourth proportional to 11,139.04, 15,378.96 and 6,953.44 is: 9,600.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,139.04 : 15,378.96 = 6,953.44 : x
  2. Step 2: Convert to fraction form
    11,139.04/15,378.96 = 6,953.44/x
  3. Step 3: Cross multiply
    11,139.04x = 15,378.96 × 6,953.44
  4. Step 4: Simplify right side
    11,139.04x = 106,936,675.62
  5. Step 5: Solve for x
    x = 106,936,675.62/11,139.04
  6. Step 6: Final answer
    x = 9,600.17

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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.