Home / 10,278.78-14,184.37-5,741.70

Finding the Fourth Proportional to 10,278.78, 14,184.37 and 5,741.70

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Solution

The fourth proportional to 10,278.78, 14,184.37 and 5,741.70 is: 7,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.78 : 14,184.37 = 5,741.70 : x
  2. Step 2: Convert to fraction form
    10,278.78/14,184.37 = 5,741.70/x
  3. Step 3: Cross multiply
    10,278.78x = 14,184.37 × 5,741.70
  4. Step 4: Simplify right side
    10,278.78x = 81,442,398.70
  5. Step 5: Solve for x
    x = 81,442,398.70/10,278.78
  6. Step 6: Final answer
    x = 7,923.35

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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.