Home / 13,087.53-18,060.42-7,119.45

Finding the Fourth Proportional to 13,087.53, 18,060.42 and 7,119.45

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Solution

The fourth proportional to 13,087.53, 18,060.42 and 7,119.45 is: 9,824.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,087.53 : 18,060.42 = 7,119.45 : x
  2. Step 2: Convert to fraction form
    13,087.53/18,060.42 = 7,119.45/x
  3. Step 3: Cross multiply
    13,087.53x = 18,060.42 × 7,119.45
  4. Step 4: Simplify right side
    13,087.53x = 128,580,257.17
  5. Step 5: Solve for x
    x = 128,580,257.17/13,087.53
  6. Step 6: Final answer
    x = 9,824.64

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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.