Home / 10,656.04-15,989.46-7,186

Finding the Fourth Proportional to 10,656.04, 15,989.46 and 7,186

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Solution

The fourth proportional to 10,656.04, 15,989.46 and 7,186 is: 10,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,656.04 : 15,989.46 = 7,186 : x
  2. Step 2: Convert to fraction form
    10,656.04/15,989.46 = 7,186/x
  3. Step 3: Cross multiply
    10,656.04x = 15,989.46 × 7,186
  4. Step 4: Simplify right side
    10,656.04x = 114,900,259.56
  5. Step 5: Solve for x
    x = 114,900,259.56/10,656.04
  6. Step 6: Final answer
    x = 10,782.64

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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.