Home / 12,440.88-18,660.68-4,649.08

Finding the Fourth Proportional to 12,440.88, 18,660.68 and 4,649.08

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Solution

The fourth proportional to 12,440.88, 18,660.68 and 4,649.08 is: 6,973.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,440.88 : 18,660.68 = 4,649.08 : x
  2. Step 2: Convert to fraction form
    12,440.88/18,660.68 = 4,649.08/x
  3. Step 3: Cross multiply
    12,440.88x = 18,660.68 × 4,649.08
  4. Step 4: Simplify right side
    12,440.88x = 86,754,994.17
  5. Step 5: Solve for x
    x = 86,754,994.17/12,440.88
  6. Step 6: Final answer
    x = 6,973.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.