Home / 6,780.04-10,142.34-5,124.28

Finding the Fourth Proportional to 6,780.04, 10,142.34 and 5,124.28

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Solution

The fourth proportional to 6,780.04, 10,142.34 and 5,124.28 is: 7,665.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,780.04 : 10,142.34 = 5,124.28 : x
  2. Step 2: Convert to fraction form
    6,780.04/10,142.34 = 5,124.28/x
  3. Step 3: Cross multiply
    6,780.04x = 10,142.34 × 5,124.28
  4. Step 4: Simplify right side
    6,780.04x = 51,972,190.02
  5. Step 5: Solve for x
    x = 51,972,190.02/6,780.04
  6. Step 6: Final answer
    x = 7,665.47

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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.