Home / 13,344.93-18,417.83-7,679.56

Finding the Fourth Proportional to 13,344.93, 18,417.83 and 7,679.56

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Solution

The fourth proportional to 13,344.93, 18,417.83 and 7,679.56 is: 10,598.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,344.93 : 18,417.83 = 7,679.56 : x
  2. Step 2: Convert to fraction form
    13,344.93/18,417.83 = 7,679.56/x
  3. Step 3: Cross multiply
    13,344.93x = 18,417.83 × 7,679.56
  4. Step 4: Simplify right side
    13,344.93x = 141,440,823.84
  5. Step 5: Solve for x
    x = 141,440,823.84/13,344.93
  6. Step 6: Final answer
    x = 10,598.85

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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.