Home / 15,177.84-22,775.40-12,119.28

Finding the Fourth Proportional to 15,177.84, 22,775.40 and 12,119.28

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Solution

The fourth proportional to 15,177.84, 22,775.40 and 12,119.28 is: 18,185.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,177.84 : 22,775.40 = 12,119.28 : x
  2. Step 2: Convert to fraction form
    15,177.84/22,775.40 = 12,119.28/x
  3. Step 3: Cross multiply
    15,177.84x = 22,775.40 × 12,119.28
  4. Step 4: Simplify right side
    15,177.84x = 276,021,449.71
  5. Step 5: Solve for x
    x = 276,021,449.71/15,177.84
  6. Step 6: Final answer
    x = 18,185.82

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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.