Home / 13,080.49-18,052.32-7,415.50

Finding the Fourth Proportional to 13,080.49, 18,052.32 and 7,415.50

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Solution

The fourth proportional to 13,080.49, 18,052.32 and 7,415.50 is: 10,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.49 : 18,052.32 = 7,415.50 : x
  2. Step 2: Convert to fraction form
    13,080.49/18,052.32 = 7,415.50/x
  3. Step 3: Cross multiply
    13,080.49x = 18,052.32 × 7,415.50
  4. Step 4: Simplify right side
    13,080.49x = 133,866,953.77
  5. Step 5: Solve for x
    x = 133,866,953.77/13,080.49
  6. Step 6: Final answer
    x = 10,234.10

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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.