Home / 19,620.76-27,065.68-12,061.84

Finding the Fourth Proportional to 19,620.76, 27,065.68 and 12,061.84

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Solution

The fourth proportional to 19,620.76, 27,065.68 and 12,061.84 is: 16,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,620.76 : 27,065.68 = 12,061.84 : x
  2. Step 2: Convert to fraction form
    19,620.76/27,065.68 = 12,061.84/x
  3. Step 3: Cross multiply
    19,620.76x = 27,065.68 × 12,061.84
  4. Step 4: Simplify right side
    19,620.76x = 326,461,901.65
  5. Step 5: Solve for x
    x = 326,461,901.65/19,620.76
  6. Step 6: Final answer
    x = 16,638.60

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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.