Home / 8,523.84-11,761.20-5,378.28

Finding the Fourth Proportional to 8,523.84, 11,761.20 and 5,378.28

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Solution

The fourth proportional to 8,523.84, 11,761.20 and 5,378.28 is: 7,420.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,523.84 : 11,761.20 = 5,378.28 : x
  2. Step 2: Convert to fraction form
    8,523.84/11,761.20 = 5,378.28/x
  3. Step 3: Cross multiply
    8,523.84x = 11,761.20 × 5,378.28
  4. Step 4: Simplify right side
    8,523.84x = 63,255,026.74
  5. Step 5: Solve for x
    x = 63,255,026.74/8,523.84
  6. Step 6: Final answer
    x = 7,420.95

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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.