Home / 14,905.78-20,570.49-8,192.02

Finding the Fourth Proportional to 14,905.78, 20,570.49 and 8,192.02

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Solution

The fourth proportional to 14,905.78, 20,570.49 and 8,192.02 is: 11,305.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.78 : 20,570.49 = 8,192.02 : x
  2. Step 2: Convert to fraction form
    14,905.78/20,570.49 = 8,192.02/x
  3. Step 3: Cross multiply
    14,905.78x = 20,570.49 × 8,192.02
  4. Step 4: Simplify right side
    14,905.78x = 168,513,865.49
  5. Step 5: Solve for x
    x = 168,513,865.49/14,905.78
  6. Step 6: Final answer
    x = 11,305.27

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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.