Home / 13,005.20-17,943.72-7,416.08

Finding the Fourth Proportional to 13,005.20, 17,943.72 and 7,416.08

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Solution

The fourth proportional to 13,005.20, 17,943.72 and 7,416.08 is: 10,232.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,005.20 : 17,943.72 = 7,416.08 : x
  2. Step 2: Convert to fraction form
    13,005.20/17,943.72 = 7,416.08/x
  3. Step 3: Cross multiply
    13,005.20x = 17,943.72 × 7,416.08
  4. Step 4: Simplify right side
    13,005.20x = 133,072,063.02
  5. Step 5: Solve for x
    x = 133,072,063.02/13,005.20
  6. Step 6: Final answer
    x = 10,232.22

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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.