Home / 19,817.45-27,347.02-10,864.78

Finding the Fourth Proportional to 19,817.45, 27,347.02 and 10,864.78

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Solution

The fourth proportional to 19,817.45, 27,347.02 and 10,864.78 is: 14,992.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,817.45 : 27,347.02 = 10,864.78 : x
  2. Step 2: Convert to fraction form
    19,817.45/27,347.02 = 10,864.78/x
  3. Step 3: Cross multiply
    19,817.45x = 27,347.02 × 10,864.78
  4. Step 4: Simplify right side
    19,817.45x = 297,119,355.96
  5. Step 5: Solve for x
    x = 297,119,355.96/19,817.45
  6. Step 6: Final answer
    x = 14,992.81

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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.