Home / 13,080.94-18,047.28-7,415.08

Finding the Fourth Proportional to 13,080.94, 18,047.28 and 7,415.08

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Solution

The fourth proportional to 13,080.94, 18,047.28 and 7,415.08 is: 10,230.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,080.94 : 18,047.28 = 7,415.08 : x
  2. Step 2: Convert to fraction form
    13,080.94/18,047.28 = 7,415.08/x
  3. Step 3: Cross multiply
    13,080.94x = 18,047.28 × 7,415.08
  4. Step 4: Simplify right side
    13,080.94x = 133,822,024.98
  5. Step 5: Solve for x
    x = 133,822,024.98/13,080.94
  6. Step 6: Final answer
    x = 10,230.31

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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.