Home / 10,278.39-14,184.15-5,562.66

Finding the Fourth Proportional to 10,278.39, 14,184.15 and 5,562.66

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Solution

The fourth proportional to 10,278.39, 14,184.15 and 5,562.66 is: 7,676.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,278.39 : 14,184.15 = 5,562.66 : x
  2. Step 2: Convert to fraction form
    10,278.39/14,184.15 = 5,562.66/x
  3. Step 3: Cross multiply
    10,278.39x = 14,184.15 × 5,562.66
  4. Step 4: Simplify right side
    10,278.39x = 78,901,603.84
  5. Step 5: Solve for x
    x = 78,901,603.84/10,278.39
  6. Step 6: Final answer
    x = 7,676.46

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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.