Home / 18,623.61-27,929.41-6,140.73

Finding the Fourth Proportional to 18,623.61, 27,929.41 and 6,140.73

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Solution

The fourth proportional to 18,623.61, 27,929.41 and 6,140.73 is: 9,209.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,623.61 : 27,929.41 = 6,140.73 : x
  2. Step 2: Convert to fraction form
    18,623.61/27,929.41 = 6,140.73/x
  3. Step 3: Cross multiply
    18,623.61x = 27,929.41 × 6,140.73
  4. Step 4: Simplify right side
    18,623.61x = 171,506,965.87
  5. Step 5: Solve for x
    x = 171,506,965.87/18,623.61
  6. Step 6: Final answer
    x = 9,209.11

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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.