Home / 13,065.36-18,029.88-7,476

Finding the Fourth Proportional to 13,065.36, 18,029.88 and 7,476

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Solution

The fourth proportional to 13,065.36, 18,029.88 and 7,476 is: 10,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,065.36 : 18,029.88 = 7,476 : x
  2. Step 2: Convert to fraction form
    13,065.36/18,029.88 = 7,476/x
  3. Step 3: Cross multiply
    13,065.36x = 18,029.88 × 7,476
  4. Step 4: Simplify right side
    13,065.36x = 134,791,382.88
  5. Step 5: Solve for x
    x = 134,791,382.88/13,065.36
  6. Step 6: Final answer
    x = 10,316.70

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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.