Home / 10,112.02-15,167.92-5,178.92

Finding the Fourth Proportional to 10,112.02, 15,167.92 and 5,178.92

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Solution

The fourth proportional to 10,112.02, 15,167.92 and 5,178.92 is: 7,768.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,112.02 : 15,167.92 = 5,178.92 : x
  2. Step 2: Convert to fraction form
    10,112.02/15,167.92 = 5,178.92/x
  3. Step 3: Cross multiply
    10,112.02x = 15,167.92 × 5,178.92
  4. Step 4: Simplify right side
    10,112.02x = 78,553,444.25
  5. Step 5: Solve for x
    x = 78,553,444.25/10,112.02
  6. Step 6: Final answer
    x = 7,768.32

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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.