Home / 15,498.68-21,398.48-11,907.24

Finding the Fourth Proportional to 15,498.68, 21,398.48 and 11,907.24

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Solution

The fourth proportional to 15,498.68, 21,398.48 and 11,907.24 is: 16,439.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,498.68 : 21,398.48 = 11,907.24 : x
  2. Step 2: Convert to fraction form
    15,498.68/21,398.48 = 11,907.24/x
  3. Step 3: Cross multiply
    15,498.68x = 21,398.48 × 11,907.24
  4. Step 4: Simplify right side
    15,498.68x = 254,796,777.46
  5. Step 5: Solve for x
    x = 254,796,777.46/15,498.68
  6. Step 6: Final answer
    x = 16,439.90

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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.