Home / 15,053.88-20,753.82-10,018.32

Finding the Fourth Proportional to 15,053.88, 20,753.82 and 10,018.32

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Solution

The fourth proportional to 15,053.88, 20,753.82 and 10,018.32 is: 13,811.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.88 : 20,753.82 = 10,018.32 : x
  2. Step 2: Convert to fraction form
    15,053.88/20,753.82 = 10,018.32/x
  3. Step 3: Cross multiply
    15,053.88x = 20,753.82 × 10,018.32
  4. Step 4: Simplify right side
    15,053.88x = 207,918,409.98
  5. Step 5: Solve for x
    x = 207,918,409.98/15,053.88
  6. Step 6: Final answer
    x = 13,811.62

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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.