Home / 10,278.45-14,184.20-5,562.63

Finding the Fourth Proportional to 10,278.45, 14,184.20 and 5,562.63

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Solution

The fourth proportional to 10,278.45, 14,184.20 and 5,562.63 is: 7,676.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.45 : 14,184.20 = 5,562.63 : x
  2. Step 2: Convert to fraction form
    10,278.45/14,184.20 = 5,562.63/x
  3. Step 3: Cross multiply
    10,278.45x = 14,184.20 × 5,562.63
  4. Step 4: Simplify right side
    10,278.45x = 78,901,428.63
  5. Step 5: Solve for x
    x = 78,901,428.63/10,278.45
  6. Step 6: Final answer
    x = 7,676.39

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Half scale
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Double scale
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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.